SERVER RCON error

[nikolya-prodigy]

Error when trying to send rcon command as a result, the rcon response is visible, but in the error window

`Error: the XML response that was returned from the server is invalid. Received: Warning: Undefined variable $rcon in /var/www/sourcebans/includes/sb-callback.php on line 2538

Warning: Trying to access array offset on value of type null in /var/www/sourcebans/includes/sb-callback.php on line 2538

Warning: Undefined variable $rcon in /var/www/sourcebans/includes/sb-callback.php on line 2538

Warning: Trying to access array offset on value of type null in /var/www/sourcebans/includes/sb-callback.php on line 2538 sm ]]>Usage: sm [arguments] cmds - List console commands config - Set core configuration options credits - Display credits listing cvars - View convars created by a plugin exts - Manage extensions plugins - Manage Plugins prof - Profiling version - Display version information

]]>scroll.toBottom(); $('cmd').value=''; $('cmd').disabled=''; $('rcon_btn').disabled=''`

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