Reinstalled MacOS on my laptop and post that activation code not working

Hi,

Order #: 33485272962

I reinstalled High Sierra and post that I can’t access the account despite of resetting the password. Also when I enter the activation code in the app it’s giving this error: “You don’t have permission to save the file “501” in the folder “elevation”.”

Please help me ASAP.

Regards.

arpan.patel03, would you mind to send us support package? It contains logs that would allow us to analyze it deeper.
Question 1 - have you already successfully used the code ?
Question 2 - how did you reinstall HS?

When trying to update my Avast Free app, also on High Sierra, I am getting the same message.