[Observium] Device showing interface error cleared long ago

Hi,

I have a device which is always showing an interface error which was previous to the Observium installation.

I cleared the error on the switch and it did not reproduce. However Observium is showing it every day I check. I've tried to delete the device and adding it back and it show the error again.

After upgrading to the latests CE it is the same. Maybe this has persisted in the DB, I don't know...

Does anyone has any hint for this behaviour?

Thanks in advance and best regards,

Pau