my.openhab.org is the old service (and about to be discontinued), so you should use myopenhab.
Uninstall the old my.openhab binding, delete all related files (cfg, persist) and start over using the new service based on the documentation you can find here:
Thank you ! I try to do what you suggest since 2 days but in the PaperUI I can’t uninstall my.openhab… when i click on uninstall it’s turn around infinitely …
I try to restart Openhab and i’m still unable to uninstall it
EDDIT : I just test and I can’t install any add-on too