Is it a legally bought antivirus kit, is it a shared code taken from somebody else (3year with 1,3,5 users).
If it's legal, you have three options
1.Calling them up directly
Night Quick Heal Support
Monday - Saturday 09.00PM to 9.00AM (IST) +91 9168625686
Quick Heal Support Number
Monday - Saturday 8.00 AM to 11.00 PM (IST) 1800 121 7377
Sunday 9.30 AM to 6.30PM (IST) 1800 121 7377
2.You can chat with them
3.you can also log in and get the e-support online.
Error ID:3 for quick heal download issues is a File corrupt ID, the explanation is given in this page link https://esupport.quickheal.com/support/solutions/articles/23000011314-the-update-definition-file-is-corrupt-aborting-the-update-process-id-3-please-try-again-to-take-upda
If it's store bought, then call the store or visit them, if it's a laptop, then take it. Hope this helps you.