Using the Flic App with Flic1 buttons

[info 6]

As of two days ago I was using, on a iOS 9.3 iPad, the flic1 buttons and the Flic App 2.2.16. Everything worked fine.
Yesterday there was no trace of my Flic1 button anymore on the Flic App and I am not able to pair the button anymore:
error code f8: "There was an error trying to connect to our servers. Please check your internet connection...".

• Internet connection is fine
• the button pairs fine with FlicApp 4.0.5 on iPhone iOS 13.5.1
• before trying on the iPAD I am sure that the the button is not paired with any another device
• the button glow red on first click but then the pairing stops half way trough

[Emil]

The as of now very old app doesn't work anymore, due to a certificate that has expired. Please use the latest app, that unfortunately isn't compatible with such an old iOS version.