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-20 :Error Execution Error - Invalid

Cindy Asaoka

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Cindy Asaoka

Hi Support,

I'm having the same issue, I'm trying to reinstall Nitro PDF V12 on my laptop and it's giving me an error message:

":-20 :ErrorExecution Error - Invalid"

Then I went to Nitro website and tried solving via activation issue by deactivating, it won't let me and I'm stuck:  

Serial Number: 234601-XXXXXX-XXXXXX
Version: 12
Status: Active
Number of Activations: 0
Number of Activations Allowed: 2

Please assist, much appreciated!



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  • Official Nitronaut
Allain Umailin

Hello @Cindy Asaoka,

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

In order to further assist you, could you please provide the serial number of your Nitro Pro 12?

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

This matters because our business installers are different from the online ones.

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