Migration Error Message

I followed the backup and restore instructions posted on nextcloud’s documentation website. Then I ran ./occ maintenance:data-fingerprint. I tried to access my internal site, and I just get the following:

Looks like a file ownership and / or permission issue. You can try runnning the follwing commands, in order to fix it… (make sure you run the commands as root and change the path to your nextcloud folder accordingly)

chown -R www-data:www-data /path/to/nextcloud
find /path/to/nextcloud/ -type d -exec chmod 750 {} \;
find /path/to/nextcloud/ -type f -exec chmod 640 {} \;

Ok now I am seeing a different error message:

Can anyone please assist? Thanks!