@lemurnick thanks for the feedback! Reporting this is important, as a fix is needed as soon as possible. However, in my tests, this error was not generated by Asset CleanUp, but by other plugins. This message was added in WordPress version 6.7.0. Can you use Query Monitor and check exactly where this error is coming from when you are loading a specific page?
@lemurnick just so you know, I managed to locate the errors! So, thank you for pointing them out!
This will be fixed in the next release for sure. However, if you want benefit from the next release sooner (that is in testing at the moment), getting rid of these notices, you can download the development version which, in essence, is the next version of the plugin (e.g. in case minor issues will be found during testing, they will be fixed).
Here’s how you can do that: https://www.assetcleanup.com/docs/how-to-get-the-development-version-of-asset-cleanup/
@lemurnick A new version of the plugin has just been released, and it has the fix for the problem you reported. If you have a minute to check it out, that would be great, and if all works well, consider upgrading the review as I believe it’s fair if the problem is gone 🙂