Lightroom Console Log huge and growing

I hope someone can help. I have a very specific problem which is making Lightroom alsmost unusable.  I am using Adobe Photoshop Lightroom 3.0 (cloud) on Windows 10 PC. 

After digging around to see why my C Drive kept filling up, I discovered that the lrcc_console.log file has been blowing out to 40GB+. It only stops growing when there is no room left on the drive. This file is located in AppData\Roaming\Adobe\Lightroom CC. 

When I close and reopen LR the log file becomes small again, but rapidly (within hours) regrows while using LR.

I don't understand most of the contents of the log file, but I noticed there are hundreds and hundreds of listings that begin "L: Unable to delete file." Here is a screenshot: