Javascriptwindow popup

Good Evening

My Manager Software in Windows 10 will not open. It keeps on giving me a JavaScriptWindow Popup. How do I fix this error. I have reloaded the program but does not help. I am using Vivaldi Browser
Thank You

Nigel Nevshehir

Do you have a screenshot?
Does the popup refer to Manager?

It is always wise to Install Malwarebytes (find it with your searchengine, Google, or DuckDuck).
This program will place the malware in quarantaine. Maybe it will solve your problem.

HI
The Popup refers to Manager. When I click on the square to maximise the screen, the manager Screen does actually come up and I can go into the program… Should I complete uninstall Manager and re-install it again. I have made Google Chrome my Default Browser now

Thanks

Nigel

Do you have a screenshot?

Hi

It seems to have resolved itself, I am using Google Chrome as my browser now.

Thanks

Nigel