[Urgent] Error when old users acess submission page

[Hugo_Melo]

Dear @bozana.
% days have passed and looks like it really solved all error 500 in here! You are a life savior! Thank you very much.

The only problem that persists is the email notification, as described here:

[Solved] Questions about OJS 3.0.2

Hello there. I’ve been using OJS 3.0.2 for some months now, without any major problems. I come here to ask u guys about a few concerns i have, and things i couldn’t find alone: First of all, how to make a full backup of the site, automatic or manual. I can imagine how I can make a backup of the files direct from server, but Its possible to make a backup of files and database, easily? Maybe a plugin? I can create new models of emails, however, when in submission page or avaliation page, when i…