Good morning, I'm trying to upgrade my Qlik Sense Enterprise server (November 2025 patch 4, qliksenseserver 14.254.13) to the new May 2026 version 15.13.8. The upgrade is successful, but when I log in, I get a series of errors that prevent me from using it. I'm forced to revert to the old, working version. I've checked for errors using chatgpt, but all services are up and running. Perhaps something related to certificates, but nothing concrete that helps me resolve the issue. Can you help me? Thanks.