Unable to edit content after upgrade from v7 to v9

[kroolik123]

Error i get when trying to edit any page is attached

I have tried removing security and caching plugins, reset cache, increase memory limit to 768MB, enable debug to see any php errors all to no avail.

All is happening on staging environment: https://staging2.wyzwanie90dni.pl

Please assist.

[prakash_s]

Hello @kroolik123,

Thanks for writing to us.

Thanks for sharing the login details I went ahead and disable all the plugins and activated the parent theme. After deactivating all the plugins and child theme page builder works fine at my end. Please have a look at the given screenshot in the secure note. I would recommend you must troubleshoot a few of the common issues with our troubleshooting guide.

Hope it helps
Thanks