Invalid argument supplied for foreach() in nodereference_url.module on line 69

Hello!
I have a problem and I don't know how can win this error's. Please help me!

1.
# warning: Invalid argument supplied for foreach() in /home/maikoff/domains/thairesort.ru/public_html/sites/all/modules/nodereference_url/nodereference_url.module on line 69.

2.
And another error that I have! I installed image+image gallery+image fupload. When I try tu upload images it show me a error: Upload Error: 503.

3.
And I have 3 more errors:
# user warning: Table 'xxx.node_field_instance' doesn't exist query: SELECT * FROM node_field_instance nfi LEFT JOIN node_field nf ON nf.field_name = nfi.field_name WHERE nf.active = 1 AND nfi.widget_active = 1 in /home/xxx/public_html/sites/all/modules/cck/content.install on line 187.
# user warning: Table 'xxx.node_group' doesn't exist query: SELECT * FROM node_group ORDER BY weight, group_name in /home/xxx/public_html/sites/all/modules/cck/modules/fieldgroup/fieldgroup.module on line 233.
# user warning: Table 'xxx.node_group' doesn't exist query: SELECT nfi.*, ng.group_name FROM node_group ng INNER JOIN node_group_fields ngf ON ngf.type_name = ng.type_name AND ngf.group_name = ng.group_name INNER JOIN node_field_instance nfi ON nfi.field_name = ngf.field_name AND nfi.type_name = ngf.type_name WHERE nfi.widget_active = 1 ORDER BY nfi.weight in /home/xxx/public_html/sites/all/modules/cck/modules/fieldgroup/fieldgroup.module on line 246.

Please help me!
If you need some more information I can give!