How to Fix An Error Has Occurred in the Script On This Page, When using Microsoft Team and other programs that use IE scripts, errors in the scripts on this page are known to occur.
An Error Has Occurred in the Script On This Page
Due to various reasons, on Windows 7, 8, or 10 computers, errors will occur in the scripts on this page. The pop-up window may be due to various reasons, from apps running in the background, unregistered urlmon.dll
files to disabled JavaScript.
You should be able to use any of the following methods to resolve this error, depending on the cause of this script error on your computer.
Register the “urlmon.dll” file
The dynamic link library (DLL) file uses the urlmon.dll
file, which is necessary for the normal operation of many Windows programs installed on the computer.
Right-click on the Start button and click on Run. In the Run Command window, type Regsvr32 urlmon.dll
and click on OK.

If the procedure is successful, you will see a confirmation reading “DllRegisterServer urmon.dll succeeded”
.
Close background apps
As we all know, applications such as Skype and OneDrive will continue to run in the background, and these programs may interfere with other programs.
Therefore, log out of Skype, OneDrive, and other active programs that are not currently in use on your computer.
Right-click on the Start button and select Task Manager. On the Task Manager screen, select the Processes tab > right-click on the Program or Process that you want to close, and click on End task.

Now, try to open Microsoft Teams or programs that provide notifications of script errors on your computer.
Disable startup items
Right-click on the Start button and select Task Manager in the WinX menu. On the Task Manager screen, select the Startup tab > right-click on the Items (one-by-one) and click on Disable.

Restart the computer > open Microsoft Teams and login.
Enable JavaScript
Although JavaScript is associated with many security issues, JavaScript is widely used and required in order for websites and many programs installed on computers to run normally.
Therefore, please make sure that the option to use JavaScript is enabled in the web browser used on your computer.
Note: In rare cases, the problem could be due to the installation of JavaScript being damaged or corrupted on your computer.
Disable third-party browser extensions
Type Internet Options in the search bar and click on Internet Options (Control Panel). On the Internet Options screen, select the Advanced tab > scroll down to the Browsing section and uncheck Enable third-party browser extensions option. Restart your computer to implement this change.

Reset internet browser
If the above solutions do not work, it may be that some Internet settings conflict with the normal functions of Internet Explorer.
Type Internet Options in the search bar and click on Internet Options (Control Panel). On the Internet Options screen, click on the Advanced tab and click on the Reset… button located under Reset Internet Explorer Settings section. On the next screen, select the Delete Personal Settings option and click on the Reset button.

Hide script errors
Type Internet Options in the search bar and click on Internet Options (Control Panel). On the Internet Properties screen, select Advanced tab > scroll down to the Browsing section and Uncheck Display a notification about every script error option.

Also uncheck Disable script debugging (Internet Explorer), uncheck Disable script debugging(other), and click on Apply.
Hope to Fix An Error Has Occurred in the Script On This Page !
More: Are you having errors downloading files on Chrome? Please refer to the article on How to fix Download Failed (Insufficient Permissions Error) in Chrome.