is there a way to turn of the spam check for /?s= search

Hello, @doctorlai.

Thank you for your request.

If you want to disable protection of search form, please, go here:

WordPress Admin Page —> Settings —> Antispam by CleanTalk —> Advanced settings —> set the option “Test default WordPress search form for spam” to “No” —> Save Changes.

More info about spam from search forms could be found here:

https://blog.cleantalk.org/how-to-protect-website-search-from-spambots/

Did it help?

Best regards.