Lost config.php, reactivation of Nextcloud failed

Hello Nextcloud Community,
i dont know how it can happen, but i lost my config.php after editing some lines with “vim”. Afterwards owncloud created a new nearly blank config.php.
Unlucky i had no backup created, so i filled all my instance parameters (mysql settings, path to data, …) manually in the newly created config.php. I though basically it should work again, but now i get only the information that i should upgrade my instance to nextcloud 12. Nextcloud 12 is already installed, i do not understand why to upgrade.

If I start the upgrade via the web interface it fails:
“Exception: Updates between multiple major versions and downgrades are unsupported.”

Why NextCloud wants to upgrade? What can i do?
How to fix this and re-enable my installation?

Greetings
Toni

Can you please output your config.php file?
It should have been requested in the support topic template.

Sanitise it first of course. I’d guess this is a mismatch between version listed in the config file and the install.

Thanks a lot, ive added the version number in the config.php and it works now!

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