Parse error including vendor/autoload.php

Sorry, just noticed you said 2.2.1

if this was a 3 version then remove the line of code you added to index.php and then simply set the flag in config.php to TRUE or the path of your vendor folder.

Ive been running 3 for ages and its fine

Have messed with the 3 upgrade, haven't quite ironed out all the details.

Thanks though! Hopefully we can get this working in our current version anyway