Blank screen on opening the Rstudio.

Hi,

I am facing issues with opening the R studio. It opens up with just the header and a blank grey screen. Cant perform any actions using the header. I uninstalled and installed this multiple times, but cant fix it.

Also i am not able to uninstall the RStudio, it throws error. I have to delete it manually.
I have installed the latest version of R 1.3.1056 and R studio - 4.0.2.

Can anyone please help me with this?