Admin menu issue with the modules tab I am using drupal 7, and i have a problem with the modules.The problem is when I login as an administrator i cant enter to the modules tab in the admin menu. there is a message say "500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed."
how can i enable a specific module?and how i fix this issue?

Thanks for your cooperation.
500 Internal server error is normally at Server level. To fix this, you'll first need to check is the actual error which you can check either Drupal Logs (located at "Admin => Reports => Recent Log message") or Apache error log (located at "/var/log" in Linux OS).