Screen locked by AVG Anti-theft

Hello Maylen,
We apologize for the inconvenience caused.
We understand how something like this will try your patience.
Please have a look at this article https://support.avg.com/SupportArticleView?l=en_US&urlName=Unlock-a-device-locked-by-AVG-AntiVirus-for-Android to unlock your mobile phone. If it fails please click on the following link https://support.avg.com/support_contact_form?l=en_US&retUrl=support_Android_AVG_Antivirus&prod=AVG%20AntiVirus and fill out your details, select as Android then the name of AVG Program that you installed in your mobile and in description explain about your issue completely and finally click on Email option. Our AVG mobile team will reply back to you via email with a resolution.

I tried the technical procedure to unlock my device but still locked, keep asking the password to unlocked my device, kindly do needful about this, there  is no option to select in my Sony mobile to unlock because the screen is locked only need is password.
Also when filling out your details choose Yes for the Question "Are you currently using any paid/trial AVG products?" even though you may be using the Free version and fill out necessary details and click on Email option.
Please feel free to get back to us for further assistance.
Thank you.