warning: mb_substr() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/unicode.inc on line 478.
    warning: mb_substr() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/unicode.inc on line 478.
    warning: mysqli_real_escape_string() expects parameter 2 to be string, array given in /var/www/html/drupal/includes/database.mysqli.inc on line 329.
    warning: mysqli_real_escape_string() expects parameter 2 to be string, array given in /var/www/html/drupal/includes/database.mysqli.inc on line 329.
    warning: mysqli_real_escape_string() expects parameter 2 to be string, array given in /var/www/html/drupal/includes/database.mysqli.inc on line 329.
    warning: mysqli_real_escape_string() expects parameter 2 to be string, array given in /var/www/html/drupal/includes/database.mysqli.inc on line 329.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
    warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.

Here is backtrace info

Message	Type: php
htmlspecialchars() expects parameter 1 to be string, array given in /var/www/html/drupal/includes/bootstrap.inc on line 856.
Backtrace:
htmlspecialchars(a:3:{i:0;a:2:{i:0;s:8:"Donation";i:1;s:8:"Donation";}i:1;i:3;i:2;s:5:"UTF-8";})[bootstrap.inc:856];
.check_plain(a:1:{i:0;a:2:{i:0;s:8:"Donation";i:1;s:8:"Donation";}})[common.inc:931];
..t(a:2:{i:0;s:21:"New comment for @name";i:1;a:1:{s:5:"@name";a:2:{i:0;s:8:"Donation";i:1;s:8:"Donation";}}})[notifications_nodetype.module:73];
...notifications_nodetype_notifications(a:2:{i:0;s:11:"event types";i:1;N;})[?:?];
....call_user_func_array(a:2:{i:0;s:36:"notifications_nodetype_notifications";i:1;a:2:{i:1;s:11:"event types";i:2;N;}})[messaging.module:1241];
.....messaging_module_invoke_all(a:3:{i:0;s:13:"notifications";i:1;s:11:"event types";i:2;N;})[notifications.module:2055];
......notifications_info(a:1:{i:0;s:11:"event types";})[notifications.module:1359];
.......notifications_event_types(a:2:{i:0;s:11:"node-insert";i:1;s:6:"parent";})[notifications.module:613];
........notifications_event_enabled(a:1:{i:0;s:11:"node-insert";})[notifications_content.module:202];
.........notifications_content_content_extra_fields(a:1:{i:0;s:8:"donation";})[?:?];
..........call_user_func_array(a:2:{i:0;s:42:"notifications_content_content_extra_fields";i:1;a:1:{i:1;s:8:"donation";}})[module.inc:482];
...........module_invoke_all(a:2:{i:0;s:20:"content_extra_fields";i:1;s:8:"donation";})[content.module:1502];
............_content_type_info(a:0:{})[content.module:1314];
.............content_types(a:1:{i:0;s:4:"page";})[content.module:417];
..............content_nodeapi(a:4:{i:0;O:8:"stdClass":25:{s:3:"nid";s:1:"4";s:4:"type";s:4:"page";s:8:"language";s:0:"";s:3:"uid";s:1:"1";s:6:"status";s:1:"1";s:7:"created";s:10:"1211930259";s:7:"changed";s:10:"1300032954";s:7:"comment";s:1:"0";s:7:"promote";s:1:"1";s:8:"moderate";s:1:"0";s:6:"sticky";s:1:"0";s:4:"tnid";s:1:"0";s:9:"translate";s:1:"0";s:3:"vid";s:1:"4";s:12:"revision_uid";s:1:"4";s:5:"title";s:7:"Welcome";s:4:"body";s:296:"

Kehila Chadasha (translated, a new community) was founded in 1978 as a community that values Jewish heritage, history, and traditions through education, celebration, music, discussions, and social action. More
";s:6:"teaser";s:296:"

Kehila Chadasha (translated, a new community) was founded in 1978 as a community that values Jewish heritage, history, and traditions through education, celebration, music, discussions, and social action. More
";s:3:"log";s:0:"";s:18:"revision_timestamp";s:10:"1300032954";s:6:"format";s:1:"3";s:4:"name";s:5:"admin";s:7:"picture";s:0:"";s:4:"data";s:1041:"a:30:{s:11:"remove_file";a:0:{}s:8:"add_file";a:0:{}s:7:"contact";i:1;s:14:"tinymce_status";s:4:"true";s:24:"xmlsitemap_user_priority";s:2:"-2";s:15:"googleanalytics";a:1:{s:6:"custom";i:0;}s:8:"new_role";i:0;s:12:"new_role_add";s:1:"5";s:16:"new_role_add_qty";s:0:"";s:24:"new_role_add_granularity";s:3:"day";s:17:"mimemail_textonly";i:0;s:14:"picture_delete";s:0:"";s:14:"picture_upload";s:0:"";s:16:"domain_admin_for";s:12:"e-kehila.org";s:5:"quota";s:9:"104857600";s:7:"forward";s:18:"hazel@by-words.com";s:12:"incoming_bcc";s:0:"";s:12:"outgoing_bcc";s:0:"";s:9:"domain_id";s:1:"1";s:13:"profile_names";s:0:"";s:19:"profile_family_name";s:6:"Kehila";s:28:"notifications_comment_notify";s:1:"1";s:17:"messaging_default";s:9:"phpmailer";s:27:"notifications_send_interval";s:1:"0";s:18:"notifications_auto";i:0;s:9:"mailalias";s:0:"";s:18:"admin_compact_mode";b:1;s:20:"domain_admin_domains";s:0:"";s:18:"domain_admin_users";s:0:"";s:5:"block";a:1:{s:5:"views";a:2:{s:22:"og_members_block-block";i:1;s:24:"og_members_block-block_1";i:0;}}}";s:4:"path";s:4:"home";}i:1;s:4:"load";i:2;N;i:3;N;})[node.module:678];
...............node_invoke_nodeapi(a:2:{i:0;O:8:"stdClass":25:{s:3:"nid";s:1:"4";s:4:"type";s:4:"page";s:8:"language";s:0:"";s:3:"uid";s:1:"1";s:6:"status";s:1:"1";s:7:"created";s:10:"1211930259";s:7:"changed";s:10:"1300032954";s:7:"comment";s:1:"0";s:7:"promote";s:1:"1";s:8:"moderate";s:1:"0";s:6:"sticky";s:1:"0";s:4:"tnid";s:1:"0";s:9:"translate";s:1:"0";s:3:"vid";s:1:"4";s:12:"revision_uid";s:1:"4";s:5:"title";s:7:"Welcome";s:4:"body";s:296:"

Kehila Chadasha (translated, a new community) was founded in 1978 as a community that values Jewish heritage, history, and traditions through education, celebration, music, discussions, and social action. More
";s:6:"teaser";s:296:"

Kehila Chadasha (translated, a new community) was founded in 1978 as a community that values Jewish heritage, history, and traditions through education, celebration, music, discussions, and social action. More
";s:3:"log";s:0:"";s:18:"revision_timestamp";s:10:"1300032954";s:6:"format";s:1:"3";s:4:"name";s:5:"admin";s:7:"picture";s:0:"";s:4:"data";s:1041:"a:30:{s:11:"remove_file";a:0:{}s:8:"add_file";a:0:{}s:7:"contact";i:1;s:14:"tinymce_status";s:4:"true";s:24:"xmlsitemap_user_priority";s:2:"-2";s:15:"googleanalytics";a:1:{s:6:"custom";i:0;}s:8:"new_role";i:0;s:12:"new_role_add";s:1:"5";s:16:"new_role_add_qty";s:0:"";s:24:"new_role_add_granularity";s:3:"day";s:17:"mimemail_textonly";i:0;s:14:"picture_delete";s:0:"";s:14:"picture_upload";s:0:"";s:16:"domain_admin_for";s:12:"e-kehila.org";s:5:"quota";s:9:"104857600";s:7:"forward";s:18:"hazel@by-words.com";s:12:"incoming_bcc";s:0:"";s:12:"outgoing_bcc";s:0:"";s:9:"domain_id";s:1:"1";s:13:"profile_names";s:0:"";s:19:"profile_family_name";s:6:"Kehila";s:28:"notifications_comment_notify";s:1:"1";s:17:"messaging_default";s:9:"phpmailer";s:27:"notifications_send_interval";s:1:"0";s:18:"notifications_auto";i:0;s:9:"mailalias";s:0:"";s:18:"admin_compact_mode";b:1;s:20:"domain_admin_domains";s:0:"";s:18:"domain_admin_users";s:0:"";s:5:"block";a:1:{s:5:"views";a:2:{s:22:"og_members_block-block";i:1;s:24:"og_members_block-block_1";i:0;}}}";s:4:"path";s:4:"home";}i:1;s:4:"load";})[node.module:766];
................node_load(a:1:{i:0;s:1:"4";})[menu.inc:411];
................._menu_load_objects(a:2:{i:0;a:20:{s:4:"path";s:6:"node/%";s:14:"load_functions";s:26:"a:1:{i:1;s:9:"node_load";}";s:16:"to_arg_functions";s:0:"";s:15:"access_callback";s:11:"node_access";s:16:"access_arguments";s:29:"a:2:{i:0;s:4:"view";i:1;i:1;}";s:13:"page_callback";s:14:"node_page_view";s:14:"page_arguments";s:14:"a:1:{i:0;i:1;}";s:3:"fit";s:1:"2";s:12:"number_parts";s:1:"2";s:10:"tab_parent";s:0:"";s:8:"tab_root";s:6:"node/%";s:5:"title";s:0:"";s:14:"title_callback";s:15:"node_page_title";s:15:"title_arguments";s:14:"a:1:{i:0;i:1;}";s:4:"type";s:1:"4";s:14:"block_callback";s:0:"";s:11:"description";s:0:"";s:8:"position";s:0:"";s:6:"weight";s:1:"0";s:4:"file";s:0:"";}i:1;a:2:{i:0;s:4:"node";i:1;s:1:"4";}})[og_user_roles.module:266];
..................og_user_roles_menu_translate(a:2:{i:0;a:20:{s:4:"path";s:6:"node/%";s:14:"load_functions";s:26:"a:1:{i:1;s:9:"node_load";}";s:16:"to_arg_functions";s:0:"";s:15:"access_callback";s:11:"node_access";s:16:"access_arguments";s:29:"a:2:{i:0;s:4:"view";i:1;i:1;}";s:13:"page_callback";s:14:"node_page_view";s:14:"page_arguments";s:14:"a:1:{i:0;i:1;}";s:3:"fit";s:1:"2";s:12:"number_parts";s:1:"2";s:10:"tab_parent";s:0:"";s:8:"tab_root";s:6:"node/%";s:5:"title";s:0:"";s:14:"title_callback";s:15:"node_page_title";s:15:"title_arguments";s:14:"a:1:{i:0;i:1;}";s:4:"type";s:1:"4";s:14:"block_callback";s:0:"";s:11:"description";s:0:"";s:8:"position";s:0:"";s:6:"weight";s:1:"0";s:4:"file";s:0:"";}i:1;a:2:{i:0;s:4:"node";i:1;s:1:"4";}})[og_user_roles.module:218];
...................og_user_roles_menu_get_item(a:0:{})[og_user_roles.module:154];
....................og_user_roles_determine_context(a:0:{})[og_user_roles.module:124];
.....................og_user_roles_init(a:0:{})[?:?];
......................call_user_func_array(a:2:{i:0;s:18:"og_user_roles_init";i:1;a:0:{}})[module.inc:482];
.......................module_invoke_all(a:1:{i:0;s:4:"init";})[common.inc:2677];
........................_drupal_bootstrap_full(a:0:{})[bootstrap.inc:1202];
........................._drupal_bootstrap(a:1:{i:0;i:8;})[bootstrap.inc:1109];
..........................drupal_bootstrap(a:1:{i:0;i:8;})[index.php:15];
...........................index.php

And more:

Message	Type: php
mysqli_real_escape_string() expects parameter 2 to be string, array given in /var/www/html/drupal/includes/database.mysqli.inc on line 329.
Backtrace:
mysqli_real_escape_string(a:2:{i:0;O:6:"mysqli":17:{s:13:"affected_rows";N;s:11:"client_info";N;s:14:"client_version";N;s:13:"connect_errno";N;s:13:"connect_error";N;s:5:"errno";N;s:5:"error";N;s:11:"field_count";N;s:9:"host_info";N;s:4:"info";N;s:9:"insert_id";N;s:11:"server_info";N;s:14:"server_version";N;s:8:"sqlstate";N;s:16:"protocol_version";N;s:9:"thread_id";N;s:13:"warning_count";N;}i:1;a:2:{i:0;s:8:"Donation";i:1;s:8:"Donation";}})[database.mysqli.inc:329];
.db_escape_string(a:1:{i:0;a:2:{i:0;s:8:"Donation";i:1;s:8:"Donation";}})[database.inc:224];
.._db_query_callback(a:1:{i:0;a:2:{i:0;s:2:"%s";i:1;s:2:"%s";}})[?:?];
...preg_replace_callback(a:3:{i:0;s:21:"/(%d|%s|%%|%f|%b|%n)/";i:1;s:18:"_db_query_callback";i:2;s:243:"UPDATE node_type SET type = '%s', name = '%s', module = '%s', has_title = %d, title_label = '%s', has_body = %d, body_label = '%s', description = '%s', help = '%s', min_word_count = %d, custom = %d, modified = %d, locked = %d WHERE type = '%s'";})[database.mysql-common.inc:40];
....db_query(a:15:{i:0;s:245:"UPDATE {node_type} SET type = '%s', name = '%s', module = '%s', has_title = %d, title_label = '%s', has_body = %d, body_label = '%s', description = '%s', help = '%s', min_word_count = %d, custom = %d, modified = %d, locked = %d WHERE type = '%s'";i:1;s:8:"donation";i:2;a:2:{i:0;s:8:"Donation";i:1;s:8:"Donation";}i:3;a:2:{i:0;s:11:"uc_donation";i:1;s:10:"uc_product";}i:4;b:1;i:5;a:2:{i:0;s:4:"Name";i:1;s:4:"Name";}i:6;b:1;i:7;a:2:{i:0;s:11:"Description";i:1;s:11:"Description";}i:8;a:2:{i:0;s:238:"This node displays the representation of a donation product allowing a user to specify their own amount for the donation. The same features are available as a regular product to allow for donation products that contain shippable products.";i:1;s:43:"Make restricted and unrestricted donations.";}i:9;s:0:"";i:10;i:0;i:11;b:0;i:12;b:0;i:13;b:1;i:14;s:8:"donation";})[node.module:498];
.....node_type_save(a:1:{i:0;O:8:"stdClass":15:{s:4:"name";a:2:{i:0;s:8:"Donation";i:1;s:8:"Donation";}s:6:"module";a:2:{i:0;s:11:"uc_donation";i:1;s:10:"uc_product";}s:11:"description";a:2:{i:0;s:238:"This node displays the representation of a donation product allowing a user to specify their own amount for the donation. The same features are available as a regular product to allow for donation products that contain shippable products.";i:1;s:43:"Make restricted and unrestricted donations.";}s:11:"title_label";a:2:{i:0;s:4:"Name";i:1;s:4:"Name";}s:10:"body_label";a:2:{i:0;s:11:"Description";i:1;s:11:"Description";}s:4:"type";s:8:"donation";s:9:"has_title";b:1;s:8:"has_body";b:1;s:4:"help";s:0:"";s:14:"min_word_count";i:0;s:6:"custom";b:0;s:8:"modified";b:0;s:6:"locked";b:1;s:9:"orig_type";s:8:"donation";s:6:"is_new";b:1;}})[node.module:464];
......node_types_rebuild(a:0:{})[common.inc:3771];
.......drupal_flush_all_caches(a:0:{})[system.admin.inc:1389];
........system_clear_cache_submit(a:2:{i:0;a:0:{}i:1;a:0:{}})[admin_menu.inc:561];
.........admin_menu_flush_cache(a:0:{})[?:?];
..........call_user_func_array(a:2:{i:0;s:22:"admin_menu_flush_cache";i:1;a:0:{}})[menu.inc:349];
...........menu_execute_active_handler(a:0:{})[index.php:17];
............index.php

Cannot figure out what causes this.