Facing problem in my macOS 11

I am a WordPress developer and blogger who developed multiple WordPress sites, recently moved from windows based system to macOS but I am facing issues in accessing some of my WordPress sites mentioned below, can anyone guide me on which plugin occurring this problem, or guide me how to resolve this issue?

However, the same sites working fine on my Windows OS, i.e. no issue in the site development.

BR,

Charles

[Edited by Moderator]