I received a warning about an app will damage my computer and am instructed to move to trash but when I try it won't go to trash the warning window reappears

What "warning window?" What is the warning? Where is this app located on your computer? If the app is currently running, then you must Quit it before you can remove it.

Please read Writing an effective Apple Support Communities question. We are here to help. We are all users. We are not mind-readers nor clairvoyants. We only know what you write down and tell us. Be specific and thorough. Include your hardware information and installed version of macOS. Try to write clearly. Think about what you want to say before you write it down, then re-read it to see if it makes sense.

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