Failed udate

i’m not able to run a new automatic update because the file: eu1.download.comodo.com/cis/download/updates/release/x32/scanners/heur.cav is recognized ad a virus by AGV antivirus software.
May be an innocent conflict only? is it a real threat?

Welcome to the Forums, gianfranco.
This is a FP. You should disable any active AV before installing CIS as the AV may create issues during the install and later.