My OJS 3.4-based setup has been partially upgraded to 3.5, and I’m unable to fix the remaining issues/errors. However, I have a clean backup of the database that’s compatible with OJS 3.5. After deleting everything from the domain, what if I reinstall OJS 3.5 on the same domain, thoroughly clean the…

I tried to upgrade ojs 3.4.0.9 to ojs 3.5.0.1 via terminal (php tools/upgrade.php upgrade), and I get the following error: 2025-08-21 11:45:36 [An upgrade step failed! Fallback set to 3.4.9.9. Check and correct the error and try the upgrade again. We recommend restoring from backup, although you may…

Hi @jhisaza , See this post: [image] Problem upgrade OJS 3.4 to 3.5 Software Support Hi @Mourad_SOUISSI , The upgrade process renames the redirect column on the site table to redirect_context_id. You’re probably trying to re-run an upgrade after the column has…

New installation with old DB and files

Software Support

asmecher August 21, 2025, 1:42pm 3

Hi @jhisaza,

See this post:

Regards,
Alec Smecher
Public Knowledge Project Team