Cannot reload as scanner setup: Not supported

[bsd_ir 0]

Hi,

 

I have installed esets-4.5.5-5.x86_64 on CentOS 6.8.  My license is Eset Main Security. 

After starting up the esets daemon the Anti Virus database is updated the successfully and I can see that emails are scanning for virus and working properly. 

But I am getting an error : 

 

esets_daemon[7825]: error[1e910000]: Cannot reload as scanner setup: Not supported

 

and it seesm that Anti Spam feature is not working. 

Can anyone guide me what does this error means and how can I enable the anti spam feature and updating the anti spam rules ?

 

_Hamid