Error when opening Acrobat

[Peter37571957vi36]

When opening a pdf document, Acrobat 2020 suddenly asks for a log-in and serial number. 

Log-in seems successful but when entering a serial number the is an error "Sorry something went wrong".

I went to my Adobe account and attempted to download and re-install the program. However, the setup aborts due to a "newer version already installed. Could this be the result of deleting cookies?

I'm stuck...

[Amal.]

Hi there

Hope you are doing well and thanks for reaching out.

I have checked the Adobe account linked with the Adobe ID you are using on this community and unable to track the paid application for Acrobat Pro 2020. However, I do found the Acrobat X product registered. If you have any other email by any chance, please try using it and see if that helps.

Let us know how it goes.

~Amal