EFW Support

Hello, i have installed a 2.4.1 community edition, for unknown reasons the pop proxy filter is not working, i cant recevie any emails, checking the logs i see a lot of these entries:

Jan 18 16:44:25 firewall p3scan[26128]: POP3 Connection from 192.168.119.45:61374
Jan 18 16:44:25 firewall p3scan[26128]: Real-server address is 200.13.161.6:110
Jan 18 16:44:25 firewall p3scan[26128]: USER 'julia.castaneda@sgbsal.com'
Jan 18 16:44:26 firewall p3scan[26128]: WARNING: Your scanner returned neither 0, a viruscode, nor a good viruscode, but 2
Jan 18 16:44:26 firewall p3scan[26128]: ERR: We can't say if it is a virus! So we have to give the client the mail! You should check your configuration/system
Jan 18 16:44:26 firewall p3scan[26128]: ERR: Scanner returned unexpected error code. You should check your configuration/system.
Jan 18 16:44:26 firewall p3scan[26128]: ERR: Exiting now...

and like these ones too:

Jan 18 16:45:05 firewall kernel: [610607.849807] p3scan[26594]: segfault at 4 ip 0804cf09 sp bfacb650 error 4 in p3scan[8048000+2d000]
Jan 18 16:45:05 firewall p3scan[26594]: ERR: Unable to free memory not previously allocated: (null)
Jan 18 16:45:05 firewall p3scan[25865]: ERR: Attention: child with pid 26594 died with abnormal termsignal (11)! This is probably a bug. Please report to the author. numprocs is now 0
Jan 18 16:45:09 firewall p3scan[26618]: POP3 Connection from 192.168.119.45:61376
Jan 18 16:45:09 firewall p3scan[26618]: Real-server address is 200.13.161.6:110
Jan 18 16:45:09 firewall p3scan[26618]: USER 'edwinquijano@sgbsal.com'
Jan 18 16:45:10 firewall p3scan[26618]: WARNING: Your scanner returned neither 0, a viruscode, nor a good viruscode, but 2
Jan 18 16:45:10 firewall p3scan[26618]: ERR: We can't say if it is a virus! So we have to give the client the mail! You should check your configuration/system
Jan 18 16:45:10 firewall p3scan[26618]: ERR: Scanner returned unexpected error code. You should check your configuration/system.
Jan 18 16:45:10 firewall p3scan[26618]: ERR: Exiting now...
Jan 18 16:45:10 firewall kernel: [610612.784568] p3scan[26618]: segfault at 4 ip 0804cf09 sp bfacb650 error 4 in p3scan[8048000+2d000]
Jan 18 16:45:10 firewall p3scan[26618]: ERR: Unable to free memory not previously allocated: (null)
Jan 18 16:45:10 firewall p3scan[25865]: ERR: Attention: child with pid 26618 died with abnormal termsignal (11)! This is probably a bug. Please report to the author. numprocs is now 0
Jan 18 16:45:26 firewall p3scan[26695]: POP3 Connection from 192.168.119.45:61382
Jan 18 16:45:26 firewall p3scan[26695]: Real-server address is 200.13.161.6:110

What should i check?
kind regards