I want to delete this message,

Sounds illegal.

That depends on the plugin license and terms of use.

I have to delete it right away.
But I do not know the plugins that help me.

It’s (probably) not illegal but it’s not cool and in my opionion unethical. That wouldn’t be allowed in the plugin repo here unless it was 100% opt-in.

Do you know which plugin does that? If you do then delete that plugin.

But I do not know the plugins that help me.

Deactivate all of them including your Quick Cache plugin.

Then clear your browser cache and reactivate them one at a time until the message pops up again. That will identify the plugin for you.

i couldn’t find “Uses wordpress plugins developed by https://www.wpdevelop.com” in footer.php and still could see it displayed at the bottom of my homepage. any help?

Deactivate all of them including your Quick Cache plugin.

Then clear your browser cache and reactivate them one at a time until the message pops up again. That will identify the plugin for you.

I will try to see.

Any help? Yes. ??

Deactivate all of them including your Quick Cache plugin.

You have to deactivate all of your plugins and then try them one at a time. If even with your plugins deactivated you still get the message then it’s your theme. Lose that too if that is the case.

I find it I will remove Category & Page I cons to thank you very much.

I solved the problem then.

Thank you very much.