In Version 5.14 the download of currency exchange rates ist not working anymore. Can't open a conecction.
Windows 7? SSL certificates have been expired, all httpS connections are impossible now. You can try to install new certificates into the system manually or update to Windows 10 or 11.
I am using Windows 10
Markus Wegmann Check your firewall settings then.
It's not a firewall problem and all other http and https requests are working.
Then there is only one option left: update the app to the latest version.