XF 1.5 Site down

Rho Delta

Well-known member
Warning: require(/home/mike/public_html/library/XenForo/Autoloader.php): failed to open stream: No such file or directory in /home/mike/public_html/index.php on line 6

Fatal error: require(): Failed opening required '/home/mike/public_html/library/XenForo/Autoloader.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/mike/public_html/index.php on line 6

Got this after installing Chris's add on install add on incorrectly (tried to install it automatically itself) that created errors, so I had my host reload my site to a backup from previously in the day, now my site just gives me this error. No idea how to fix this, need it back up ASAP.


Well-known member
Sounds like you have files missing. That's a core file that isn't present, so download a copy of XenForo from the customer area, and re-upload the core files.