Content license is Expired

Does anyone have an idea what thios means?

“Content license is Expired”

Subject: Content license is Expired

Are you running Symantec’s SAV for Domino product? (either as a trial or purchased product)

Subject: RE: Content license is Expired

I have installed Domino R6.01 with Symantec Antivirus/Filtering 3.1 (no trial) and I have been received this message since I installed the Antivirus.