My Mail Server Might be Hacked!

After i update to the Latest CyberPanel.
I’m feeling someone has been hacked my email server and send many spam emails!!
Please Help me, how can i fix this?
Thank You

sorry i’v uploaded the wrong screenshot!
here it is

Have you changed rainloop admin password? that might have been a gateway

Yes Have Changed!

Now its stopped after i change that email password!