Try reuploading all your clientscript files^
And for anyone getting security token errors here's how I fixed it.
Go to your templates --> Edit cyb_chatbox ---> Search for:
HTML Code:
<form name="cybcb_post_form" action="misc.php?$session[sessionurl]&securitytoken=$cybcb_sectok" method="post" onsubmit="return Ccb_postMessage(this);">
Replace with:
HTML Code:
<form name="cybcb_post_form" action="misc.php?$session[sessionurl]&securitytoken=$cybcb_sectok" method="post" onsubmit="return Ccb_postMessage(this);">