I am update addicted and i did in both versions and didnt work,
i cleaned caches i removed addons used default template 2020 and nothing.
Now i am ralling back for the second time.
You don't need to change the theme or deactivate any plugin. You just need to make sure the old addons are deactivated, you should not use old addons with current wpForo version. Also, if you have customized forum template files in your active WordPress theme you should update them.
So, let's try again. Deactivate all old wpForo addons as it says in the update notes, check the active theme, make sure there is no customized forum template file, and update.
Once updated, delete all caches, purge CDN, then go to forum home page and press Ctrl+F5 twice to reset your browser cache. That's it.
thank you but i will try again Sunday or Monday , if you can help would be perfect
i thin i found where was the error from.
I was deactivating all wp foro addons with the migration tool included