Undefined constant ServerboundPacket::NETWORK_ID

[xan6x]

[09:49:06.096] [Server thread/CRITICAL]: Error: "Undefined constant pocketmine\network\mcpe\protocol\ServerboundPacket::NETWORK_ID" (EXCEPTION) in "plugins/Practice/vendor/muqsit/simple-packet-handler/src/muqsit/simplepackethandler/utils/Utils" at line 117
--- Stack trace ---
#0 plugins/Practice/vendor/muqsit/simple-packet-handler/src/muqsit/simplepackethandler/interceptor/PacketInterceptorListener(54): muqsit\simplepackethandler\utils\Utils::flattenPacketPidsFromGroups(object pocketmine\network\mcpe\protocol\PacketPool#87692, array[1])
#1 plugins/Practice/vendor/muqsit/simple-packet-handler/src/muqsit/simplepackethandler/interceptor/PacketInterceptorListener(58): muqsit\simplepackethandler\interceptor\PacketInterceptorListener->parsePidsFromHandler(object Closure#87984, string[50] pocketmine\network\mcpe\protocol\ServerboundPacket)
#2 plugins/Practice/vendor/muqsit/simple-packet-handler/src/muqsit/simplepackethandler/interceptor/PacketInterceptor(20): muqsit\simplepackethandler\interceptor\PacketInterceptorListener->interceptIncoming(object Closure#87984)
#3 plugins/Practice/src/reflex/network/PacketInterceptor(28): muqsit\simplepackethandler\interceptor\PacketInterceptor->interceptIncoming(object Closure#87984)
#4 plugins/Practice/src/reflex/network/PacketInterceptor(22): reflex\network\PacketInterceptor->interceptIncoming()
#5 plugins/Practice/src/reflex/Reflex(91): reflex\network\PacketInterceptor->__construct(object reflex\Reflex#67686)
#6 plugins/Practice/src/reflex/Reflex(72): reflex\Reflex->registerPacketInterceptor()
#7 pmsrc/src/plugin/PluginBase(119): reflex\Reflex->onEnable()
#8 pmsrc/src/plugin/PluginManager(461): pocketmine\plugin\PluginBase->onEnableStateChange(true)
#9 pmsrc/src/Server(1490): pocketmine\plugin\PluginManager->enablePlugin(object reflex\Reflex#67686)
#10 pmsrc/src/Server(1117): pocketmine\Server->enablePlugins(object pocketmine\plugin\PluginEnableOrder#67534)
#11 pmsrc/src/PocketMine(360): pocketmine\Server->__construct(object pocketmine\thread\ThreadSafeClassLoader#3, object pocketmine\utils\MainLogger#6, string[20] /home/reflex/server/, string[28] /home/reflex/server/plugins/)
#12 pmsrc/src/PocketMine(383): pocketmine\server()
--- End of exception information ---