Hello, I have a fully working nav 5.12 instance and when I try to upgrade to 5.13, 5.14, 5.15, always have a lot of internal server errors 500 , and I'm unable to get graphite work again.

If the process of upgrade is always within debian 11 packages, no success.

I tested upgrading from debian 11 to 12, and then upgraded NAV but not success!

Please, does anyone know if there are some steps in the upgrade process that I have missed?

Thanks in advance,

S. Grau