Why do you have the SOAP logging enabled? I suggest you to turn it off by editing this setting in the nworks Enterprise Manager:
1. go to Enterprise Manager tab
2. select the Collector and click "Advanced Settings"
3. set EnableSOAPLogging = false
press OK and restart the collector.
you can remove this log due to it's not needed in the regular collector work and only used for the troubleshooting.
Hope this helps,