Uprade Eror Ojs 3.4 to 3.5

how can help me Pleace…
just upgraded from ojs 3.4.8 to ojs 3.5.0 after the installation process appears as in the picture

After receiving the message, I went back to back up the data but an error 500 occurred as shown in the picture. Please help.

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Hi @zal,

I think you’re encountering the same problem discussed on this thread. Please watch there for a solution.

Regards,
Alec Smecher
Public Knowledge Project Team