Soledad Jean-Pierre Posted August 11, 2020 Report Share Posted August 11, 2020 Hello, I originally had Nitro Pro 11 but tried to upgrade to Nitro Pro 13 last week. Nitro Pro couldn't find my serial number and when looking at some of the support topics, I realized that my serial number is only eligible with Nitro Pro 12. I downloaded Nitro Pro 12 however I get the following error message: 22: Error - Wrong license number. You have attempted to activate Nitro Pro with a serial number from another version. You can only activate this version of Nitro Pro with its matching serial number. I know that my serial number is correct. Not sure what the problem is. Link to comment Share on other sites More sharing options...
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