How to activate KNX1 Binding after migration to Pi 4

I migrated from a Pi Zero to a Pi4 running at 2.5.12. I did a backup and a restore on the new system using the backup tool provided. Everything looks good but the KNX1 Binding (the jar file) did not come with the restore. Now I have the situation that my openhab is thinking it has the Binding installed but cannot find the jar file. When I compare the file structure of the old installation and the new installation I find that a lot has changed. Now my question: where shall I put the KNX1 jar file ?
At the moment I get an error message
2022-01-13 11:11:23.987 [ERROR] [core.karaf.internal.FeatureInstaller] - Failed installing 'openhab-binding-knx1

In your /addons folder.

You’ll still get the message until you remove the entry from your addons.cfg text file

The reason it can’t download KNX1 is -

Nowhere. openhab v1 bindings such as yours no longer work in OH3.
Use the current KNX binding. You will have to migrate your KNX config for that.

Thank you for the replies. I am currently on 2.5. Migration from KNX1 to KNX2 binding will follow, but the hardware migration is enough to do at the moment. I could solve the issue but I had to manually install a dependency neccessary for KNX1 via the Karaf console.
The command:
bundle:install -s wrap:mvn:commons-collections/commons-collections/3.2.2
did the trick.