Problem Deleting Old Records

There seems to be a problem deleting the old records. It says that it has been cleared, but then the error logs (and there are a lot) are still there. Any idea why this might be?

I'm a Pro user, by the way.

Thanks Alex for all your help so far.

Which date do you choose? By default it chooses month backward from today.

Thanks Alex,

You're right again. As far as I can tell your script is flawless.

Thanks.