Fatal error on upgrade

I was trying to update OJS 2.2.2 to the latest 2.4.8-1 using the patch method mentioned in https://pkp.sfu.ca/ojs/UPGRADE

Everything went well including the DB upgrade except some warnings.

I haven’t done any file modification except running the patch method via SSH. But when I tried to access the site, the following fatal error is showing.

http://journal.existentialpsychology.org/

Please help.

You fixed this already? I did not see any errors.

Yes, I fixed it. :grinning:

Followed this Update ojs 2.3.7 to 3 - #2 by knjigor