ClamAV broken - Stopped incoming emails

Bit of a odd one this morning. Incoming emails have been affected and It seems to be down to ClamAV. Looking at the log file for this morning its just full of:

Fri Jan 26 12:32:16 2018 -> ERROR: accept() failed:
Fri Jan 26 12:32:16 2018 -> ERROR: accept() failed:
Fri Jan 26 12:32:16 2018 -> ERROR: accept() failed:
Fri Jan 26 12:32:16 2018 -> ERROR: accept() failed:

Anyone got any ideas?