Jo.
Well-known member
Looks like the folder isn't owned by PHP or your server is just being really restrictive :/
Try commenting out the two XenForo_Helper_File::makeWritableByFtpUser lines in /library/Dark/XFOptimise/ControllerAdmin/Kondou.php (58 and 59), and if necessary line 37 too.
Commenting out lines 58 and 59 seems to have worked - thanks Darkimmortal!!