MyBB Community Forums

Hello guys.
I'm using DZV's shoutbox plugin (on latest version) on MyBB 1.8.14 
No one can use shoutbox, anyone knows why? Even I have full permissions, I am the creator of the forum, and cant use it. When I type anything in the shoutbox, and press enter, I'm getting this message:

My forum url: https://balkantrade.network
Test account: 
USER: testotestic123
PASS: testeratestera

Settings of plugin:

If anyone is willing to help me, thanks! ) looking forward to fix it.

check in tools and maintenance and see if there are additional permissions

I consider you add MyBB copyright in the footer.
https://mybb.com/support/eligibility-policy/

Also ripped theme smh -.-

--- no need to post multiple threads (4) for the same issue ---
https://community.mybb.com/thread-215217.html