Error occurring after hosting migration.

What is the error message below?

Raksne you migrated to a different host? After migrating, have you run composer update?

Hello,

I recently migrated my Flarum forum to a new hosting provider.

The homepage works fine, but I cannot access:

I get a “Not Found” error.

PHP version is 8.2.
The vendor folder exists.
I do not have SSH access on this hosting.

Could this be a rewrite (.htaccess / mod_rewrite) issue, or does it require running composer update after migration?

Thank you for your help.

You probably switched from webserver, eg from apache to nginx. As such your rewrite rules are not in place for the currently active webserver.