Quote Originally Posted by mc12345678 View Post
Error log in the logs directory? (format of: myDebug-xxx) note that the log may contain admin directory information so if posted, recommend obscuring.)
If there is nothing interesting in the ZC logs folder you might check the system logs folder in root. i.e. /
In my experiences with EP4 if the temp directory isn't correct it will throw a warning that no temp folder is available.
In addition to the logs can you post a screen shot of the screen that fails?
Do all the other Admin functions still work? If so carefully go back through your EP4 installation. Probably just a misstep.
Also what version of PHP is running.