Trying to reload AVG Free and get an error code message

I had trouble with my laptop recently when my user profile corrupted. I had it repaired but the repairer didn't realise I was using AVG free so didn't reinstall AVG for me as it was asking for a product key. I uninstalled AVG using the online AVG uninstall tool from the AVG website. Now when I try to reinstall AVG Free I get the following error message. Does anyone know what this means and how I can fix it? I don't want to have to pay for the repairer to fix it for additional charges if I can fix it myself. I have already reloaded Windows 10 myself. Thank you in advance.

Error code: 0xC007064C
Description: Event exec_finished
Thank  you in advance.

Hello Christine,
We certainly understand your concern. We have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue. Thank you.

Hello Christine,
We certainly understand your concern. We have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue. Thank you.