500 internal server error at back end - Joomla

Question

I have installed new site in Joomla 1.7 and its working fine, but when i checked its back-end (administrator) got 500 Internal Server Error.

Note: Site

Answer 1

I tried all the above ideas. Without avail. For my site (which was an outdated Joomla 1.5.x site- don't ask!!!), where the backend suddenly stopped working, the final solution was switching the servers PHP version from 4 to 5.5 (even 5.4 did not work!).

I then got some strange PHP warnings in the frontend. But I then updated Joomla from the now again working backend to the last 1.5 version and everything worked fine from the on.

Phew! Maybe this helps someone later on...