The plugin did not start working properly

Everything was pretty good. Very easily and quickly installed a plugin that worked perfectly for two months. Seven days ago, reinstalled the operating system and downloaded a new antivirus program. Since that time, problems began in the plugin. The antivirus program constantly blocks the plugin, and when it starts, it does not work in full accordance with its purpose. Tell me how to bypass the antivirus program or change the settings of the plugin to fully function ???