Problems with importing files

I can’t upload a single file, it constantly gives an error. The browser is chrome. How to fix it?

No issue here however, how big is your file

When error occurs Press OK, then a new tab opens with some text
Copy and post that text here

Technical Data to be Submitted:

notes = Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.92 Safari/537.36
foundIn = 1.4C.1-Eagle
faultData = Exception caught: (TypeError) : Cannot read property ‘showSnackbar’ of undefined
projectId = 6418726226231296

this will happen with any file, regardless of size and format

  1. See if any snack bar block is left without any input value

  2. See if any error are there in your block

I do not have such blocks.
I solved the problem by putting firefox instead of chrome. Through firefox, files load normally.