modules all files issue

These modules are installed in the database, but are missing from within the file system. how to fix this issue help me.

Hi Vishal, several of these are core modules, so it sounds like something may have happened to your filesystem. The first thing to check would be if there are folders that match the names of these modules in your Gibbon /modules` folder. If the modules are there, check to see that the file permissions and file ownership is set so your web server user can read them (this user is often www-data on LAMP systems).