Error after upgrading to 4.0 – Please Help!

I truly hope someone will help me this time ??

Few days ago i upgraded to 4.0 – or at least tried to but got an 500 internal error constantly. So i left things the way they were (still not sure IF the version did update or not) and went to update some of the plugins. After 2 minutes the site was down! I can’t enter my dashboard and here is the error https://theoriginalscw.tv/
It is a 500 internal error. I am using Newspaper theme.
What i did after this was
1. i downloaded 4.0 and uploaded via FTP (overwriting the files)
2. i downloaded the latest version of Newspaper and did the same thing via ftp
3. i deleted (almost) every plugin i had and also all the other inactive themes that i had
NOTHING worked:(
I am desperate – i am loosing money and can’t fix the error.
Someone, anyone has even a clue what could be the problem????

Thanks