Describe the bug When i open the siskin.im app as alwys since today it appears the msg: Certifikate Issue Server for domain tigase.im has an invalid certificate for tigase.im with fingerprint etc. issued by R3 with fingerprint etc. Do you trust this certificate? I press no because I think it might be compromised.

To Reproduce Steps to reproduce the behavior:

1. Go to 'settings'
2. Open 'the account'
3. Click on 'activ'
4. See error

Expected behavior To be active and can write msg`s.

Screenshots If applicable, add screenshots to help explain your problem.

Details (please complete the following information):

• Siskin Version: [7.3]
• iOS version [16.0.2]
• iPhone model [iPhone 8]

Additional context