Error on Security by Cleantalk

I’m getting this message error on my plugin backend for security by cleantalk, can you advise?

2026-05-25 21:37:24: Scheduled: scanner__launch: “WRONG_SITE_RESPONSE TEST_ACTION FOR RC scanner__controller, ERROR: UNEXPECTED RESPONSE: \u0022\u0022\u003Chtml\u003E\u003Chead\u003E\u003Ctitle\u003EError 403 – Forbidden\u003C\\/title\u003E\u003Chead\u003E\u003Cbody\u003E\u003Ch1\u003EError 403 – Forbidden\u003C\\/h1\u003E\u003Cp\u003EYou don\u0027t have permission to access the requested resource. Please contact the web site owner for further assistance.\u003C\\/p\u003E\u003C\\/body\u003E\u003C\\/html\u003E\u0022\u0022”