Issue to enable plugin plugin-Authenticator 2.2

Hello,
I'm trying to enable the plugin plugin-Authenticator 2.2 for SysPass 3.2.
I downloaded the plugin and copied it to syspass/app/module/web/plugin/. The plugin appears in the console, but when I try to enable it, I get the message: "There was an error SyntaxError: Unexpected token '<', "".

What can I do to fix this problem?
Thanks!