tribestspecialties

Hello, I am trying to input my meta pixel on my website (Marketing > Meta Pixel and Ads) however, when I paste my code I get a red error message, attached. After contacting support, they advised me to check the code injector (Settings > Advanced > Code injector) however, I don't see any specific code there related to the Meta pixel, see screenshot attached. Support then advised me to check the Google Tag Manager, which there it also doesn't show a Facebook pixel is installed, see attached. Any insights?? I just want to add my Meta pixel to my website!