On Settings -> Management Access, what is "Use SSL/TLS" set to ?  I'll assume it is set to "Yes"   It also looks like your "Local TLD" setting is "local", which is good.   This means if the system ever generates a URL to itself (particularly in Unraid 6.10) it will use https://tower.local . We want to make sure that url works correctly before you upgrade to 6.10.   I would recommend deleting your certificate and letting Unraid generate a new one.   Prob