Unexpected “)” syntax error, but there isnt a way I can fix that the syntax is right.

PHP:

    public function onDeath(EntityDamageEvent $event) {
        $player = $event->getEntity();
        $killer = $event->getFinalDamage()->getDamager();
        $killern = $killer->getEntity();
            if($event instanceof Player){
                $killer->sendMessage(c::RED. " You killed ". $player . );
    }
}


 

Remove the last dot in sendMessage(). A string can be concatenated with

• an object with method __toString() declared
• another string
• null
• float|int|double

but never with the open atmosphere. You never know what's happening in the atmosphere.