Revo 2.4.2 Could not load class: pdotools from pdotools.pdotools.

Hello. I added PDOTools to my 2.2.14pl version website.
In noticed this error : "Could not load class: pdotools from pdotools.pdotools." (in the erro log)
So i updated to 2.4.2. But still it rains "Could not load class: pdotools from pdotools.pdotools." while working in manager.
When i clear cache it says also says in red "Could not load class: pdotools from pdotools.pdotools."

I have allready changed the settings compress_js and compress_css to NO. That helped so the cache can be refreshed now.
The PDO erro stays..

You need to reinstall pdotools. Just go to Extras, Installer, and click the "Reinstall" button for pdoTools.

Thank you very much Sussan for your fast answer.
Go to try this after weekend. (i reverted the update because of it)