To change the server slots of your Multi Theft Auto gameserver, you need to modify the "mtaserver.conf" file.
To do this, you should connect to our FTP server. You can find your FTP credentials in our server management "GSM," under the "FTP" tab.
Once connected to our FTP server, you will find the "mtaserver.conf" file here: /serverXXXXX/server/mods/deathmatch
<maxplayers>32</maxplayers> (You can increase this value up to a maximum of 4096)
Before modifying this value, you should stop your gameserver.
Afterward, you can start your gameserver again.