I could not login as superadmin . still long time and return 500error

[sabri123]

 

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at [email protected] to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

... i changed to dev mod in defines_in.php 

no error report return , no error msg