Uncaught SyntaxError: Unexpected token b in JSON at position 0

[litehacker]

This problem popped up after I updated Wordpress theme. The files are loading OK in Google Chrome locally but not when loaded from the website. BUT all is ok when I try Edge Browser.
The error looks like this:

Uncaught SyntaxError: Unexpected token b in JSON at position 0
    at JSON.parse (<anonymous>)
    at new Settings (settings.js:10)
    at main.js:6

main.js/ 6
var settings = new SLAcer.Settings({
.....
settings.js /10
this.settings[namespace] = JSON.parse(

[jordigagomerino]

Uncomment the window.localStorage.clear(); line. (Line 4)