Failed in verifying DKIM

Failed in verifying DKIM

Hello,

I got no response when I clicked the verify button for DKIM

the console output was:
Uncaught ReferenceError: rs is not defined
    at Object.ma [as fn] (dkim.min.js:2)
    at Object.cbck (dkim.min.js:1)
    at Object.success (dkim.min.js:1)
    at l (aclib.js:1)
    at Object.fireWith [as resolveWith] (aclib.js:1)
    at d (aclib.js:3)
    at XMLHttpRequest.d (aclib.js:3)

I tried (Chromium 58.0.3029.110)/IE/Edge, nothing changed.

What should I do?

Regards