Failed to install avg performance pro despite payment

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ERROR CODE: EVENTEXEC.FINISH

Hello Alaa,
We regret for the inconvenience caused. Please run AVG remover tool : http://aa-download.avg.com/filedir/util/AVG_Remover.exe to completely uninstall the previous installation of your AVG program from your PC. Once uninstalled please follow the instructions on the article http://avgread.me/1If7pzz to reinstall your AVG program. Please let us know if you are facing further issues so that we could provide you with alternative resolution.

Hello Alaa,
We certainly understand how frustrating it is to have to go through this and I regret the inconvenience that it has caused. Please provide us with the screenshot of the error message you have received so that we could analyze the exact issue and assist you better in resolving it. Please have a look at this article http://avgread.me/1aZxsAV to attach the screenshot.
Thank you.

I have deleted the whole program and reinstalled and failed again installing AVG Performance Pro.??