<https://forum.mtasa.com/topic/73047-gui-one-player-see/#comment-673902>
<http://schema.org/text>
"triggerClientEvent(\"otworzgui\",pl) \n\n\n \nThere's your problem, you need to specify the \"sendTo\" argument before the event name, like this: \n\ntriggerClientEvent ( pl, \"otworzgui\", pl ) \n\n\n \n"
<https://forum.mtasa.com/topic/73047-gui-one-player-see/>