Activation on new upgrade not working

[cdrva 0]

Just updated, deleted the prior version and uploaded the new version. Inputted the new activation and I keep getting the trial version ended message.  It only allows me the option to deactivate.  When I tried the activation screen I got serial number not valid. I am out of options at this point, please advise!

[AllainU 0]

Hello @cdrva,

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'.

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