Can anyone help with this error?
Connection Test Failed!
Invalid XML. Error: ''doctype' is an unexpected token. The expected token is 'DOCTYPE'. Line 1, position 3.' We received: '<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="x-ua-compatible" content="ie=edge"> <title>
Spent days on this so far!