Your CMS configuration has an issue
Warning User Enumeration is possible
The first two user ID's were tested to determine if user enumeration is possible.
ID User Login
1 None commw
2 None None
It is recommended to rename the admin user account to reduce the chance of brute force attacks occurring. As this will reduce the chance of automated password attackers gaining access. However it is important to understand that if the author archives are enabled it is usually possible to enumerate all users within a WordPress installation.
Probably the blocking was IP related, wait for an avast team member to give the final verdict on that site, that might come next week.
We here are just volunteers with relevant knowledge, but only avast team members can come and unblock.
polonus