I am having problems with mobile tools module on nginx web server. Module installs without any problems or errors, I can even get to admin/config/system/mobile-tools, but when I try to add or edit existing (default) group, I get "500 Internal Server Error".

My error_log says: 284065#0: *42459 open() "/var/www/mariborcan.si/web/drupal/admin/config/system/mobile-tools/add" failed (2: No such file or directory), client: 93.103.130.77, server: mariborcan.si, request: "GET /admin/config/system/mobile-tools/add HTTP/1.1", host: "mb.sobotainfo.com", referrer: "http://mb.sobotainfo.com/admin/config/system/mobile-tools"

Drupal Reports says: PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'b.parent' in 'field list': SELECT b.parent AS parent FROM {browscap} b GROUP BY parent ORDER BY parent ASC; Array ( ) in mobile_tools_browscap_get_browscap_parents() (line 139 of /var/www/clients/client0/web23/web/drupal-7.18/sites/all/modules/mobile_tools/mobile_tools_browscap/mobile_tools_browscap.module).

On apache server (and different drupal installation) I don't have any problems.

Any idea what could be the problem and how to solve it? I guess it is something with nginx configuration, but all other modules are working fine and without any problems....

Kind regards