pipe error message in log files

I noticed some data in C:\Documents and Settings\user\Application Data\AVAST Software\Avast\log\avastium.log

[0529/072421:ERROR:ipc_channel_win.cc(512)] pipe error: 232

and in C:\Documents and Settings\user\Application Data\AVAST Software\Avast\log\cef_log.txt

[1118/043601:ERROR:ipc_channel_win.cc(217)] pipe error: 109

Does anyone know if the prefix numbers related to a date + time stamp?
Everything appears to work ok, so is “pipe error” a warning or more serious?

Platform: XP SP3 32bit + Avast 17.9.2322 (build 17.9.3761.278)