One primary reason you might be getting script error in QuickBooks is having a lot of junk files stored in the browser. Follow the instructions given below to rectify the issue quickly.
1.If you are using Google Chrome, run it and click the three dots on the top-right.
2.Select Settings and search Clear Browsing Data from the Search Settings search bar at the top.
3.Click the Clear Browsing Data option and select Cached images and files and cookies, and other site data from the options.
4.Select All Time from the Time Range drop-down and click the Clear Data option.
5.Restart your browser and retry to perform the same action that triggered the error earlier.
If you are using some other browser, go to the settings and look for the options that will take you to the junk files and delete them. If you again get a QuickBooks script error while accessing QuickBooks Online, dial 1.800.579.0391 and get in touch with a certified QuickBooks Desktop expert now.