Pages do not match! Timestamps differ or were not found!

Did you follow the instructions written below that heading?

Things you can do:

Load your homepage in a logged out browser, check the timestamp at the end of the html source. Load the page again and compare the timestamp. Caching is working if the timestamps match.

Enable logging on the Debug page here. That should help you track down the problem.

You should check Page 1 and Page 2 above for errors. Your local server configuration may not allow your website to access itself.

Yes, I did all those steps and had no success. I also tried using this plugin a few years ago and couldn’t fix this error.

So, I gave up using the plugin and installed another.

OK, sorry it didn’t work. If you ever try this plugin again, it might be worth trying the debug log. It will probably tell you why a page isn’t being cached.

Will try that sometime. Thanks for the time answering my concern.