By the way, the reason I didn't add the error before, is because I didn't think it will tell you much without looking at the app itself, but here it is (hope it helps):
Uncaught TypeError: Cannot read property 'hasError' of null
at Object.success (v_11_db6fd508dc4b8f295c6aaea66d905801.js:211)
at j (v_11_db6fd508dc4b8f295c6aaea66d905801.js:2)
at Object.fireWith (v_11_db6fd508dc4b8
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