You can add the PureBasic Server app in the firewall, but the app is not added and the connection is still cancelled externally because the app is not signed.

Does anyone have a solution?
The server app also works when the firewall is switched off.
Sign the PureBasic app and add it to Firewall
Start Terminal:
Add Signatur:
sudo codesign --force --deep --sign - /Users/Michael/Daten/Purebasic/Ablage/MyServer.app
Remove Signatur:
sudo codesign --remove-signature /Users/Michael/Daten/Purebasic/Ablage/MyServer.app
Add to Firewall:
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --add /Users/Michael/Daten/Purebasic/Ablage/MyServer.app
Remove from Firewall:
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --remove /Users/Michael/Daten/Purebasic/Ablage/MyServer.app
THANKS!