Valid Serial Number and invoice but license portal says enter in valid serial

[KnightSecurity 0]

I have the invoice still but when i try to reactivate my license due to having to uninstall/reinstall im getting an "invalid serial key" error. 

 

[AllainU 0]

Hello @KnightSecurity,

Thank you for reaching out to us through our Community Forums!

In order to further assist you, could you please provide a screenshot of your 'About Nitro Pro' window under Help tab?

Also, a screenshot of the error message you have received after entering your serial number.

To send them via private message, hover your mouse on top of my name 'AllainU' and select 'Message'.

To find out how to take a screen shot, check out this link: https://kb.gonitro.com/knowledgebase/#/search/screen/000004108 

Thank you very much in advance and I am looking forward to hearing back from you.  

[KnightSecurity 0]

sent