App not running even in safe mode for fa_IR locale

our problem is something like this thread, with the difference that it happens for the string js.user_action_groups.1.

the site is upgraded to latest.

I would be thankful if someone can guide me how to help the app.

everywhere is blank, even the safe mode. but jason pages work good, like https://padpors.com/users/Alavi1412.json, or the /admin/upgrade/ page.

##edit
does anyone knows howto go to a previous version of discourse?

does anyone know howto restore a backup in terminal?

this howto doesn’t seem promising as I couldn’t even get a backup from the current version of database using the howto in terminal.

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