My AVG internet security will not reinstall. it says avgui.exe can not be found

AVG Performance
1

I have used your cleaning tool multiple time in and out of safe mode. AVG will not reinstall. all my other products have reinstalled. This is annoying

2

Hi Robert,

We're sorry to hear this.
We've escalated your case to our senior team. Our team will check this and write back to you via email.
We request your patience. 
Thank you.

3

Hi Robert,

We're sorry to hear this.
We've escalated your case to our senior team. Our team will check this and write back to you via email.
We request your patience. 
Thank you.