I have moved our discussion forum from 3.0.x to the current 3.1.3 all appears to have gone well, and the database_update.php ran through without any error. However when I try to log into the forum, I get the message that:
Fatal error: Uncaught exception 'RuntimeException' with message 'Unable to create the cache directory (./cache/twig//91/9b).'
You can view the whole message by going to http://discussion.eas.org.uk/adviceforum/index.php
I initially assumed that this was a file permissions issue, and checked the File Attributes for the "cache" directory using FileZilla. The cache folder is '777' however the "twig" folder is '755' and I cannot change this to '777', FZ returning 550 for the operation CHMOD 777. Also I cannot delete the cache or the twig folders going all the way down to the "9b" folder:
Command: RMD 9b
Response: 550 9b: Permission denied
1. Is the original fatal error related to the folder permissions?
2. If I'm unable to delete the folder, then I'm also unable to revert the board back to the pre-update version.
Bit of a bind really.