I need clearly why is onedrive having issue with javascript??

I got a pop fill error after javascript not working, as pop up with my onedrive giving me problems setting up with installing repiar my windows. recently after I had help with several concern on onedrive trying unistall it and install back their window said I just should ask connect to issue related both, not working prorperly javascript error and onedrive saying it already been installed or newer version is installed but it not repair it. The whole process of unistall and install it again both option werent possible to do? said has notting set blank?