I have been having problems with the Boclean update on a couple of my computers this morning. Version 4.25 is installed on each computer.
They update appears to download and install OK, but after a few minutes, Boclean crashes with errors. I checked the file size when it updated and it seems about the right size. But when Boclean crashed, the file was there but the file size was zero. Fortunately, I have a backup of the update file from yesterday so it was simple to get Boclean going again.
As this happened at the same time on two different computers, maybe there is a problem with this update.