Error 58033. Cannot remove document file. Either the document file has already been removed or another application is using the file. The ProjectWise Caching Server may be stopped.
The IP address of the caching server had changed, and the PW server was still trying to connect using the old IP address.
1. Verify that the IP is valid in DNS, and in the PW Integration server's dmskrnl.cfg
2. Restart the ProjectWise integration server service to clear out the old IP from its own cache