MultiMc crash

[titollo]

Bonjour,
mon jeux multi mc crash et c'est seulement sur une seul map voici les log.(avec le code d'arrêt 255)

* Tesla API class 'Tesla' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.Tesla)

* Tesla API class 'TeslaCapabilities' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.capability.TeslaCapabilities)

* Tesla API class 'ITeslaConsumer' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.ITeslaConsumer)

* Tesla API class 'ITeslaHolder' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.ITeslaHolder)

* Tesla API class 'ITeslaProducer' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.ITeslaProducer)

* Tesla API class 'BaseTeslaContainer' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.implementation.BaseTeslaContainer)

* Tesla API class 'BaseTeslaContainerProvider' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.implementation.BaseTeslaContainerProvider)

* Tesla API class 'InfiniteTeslaConsumer' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.implementation.InfiniteTeslaConsumer)

* Tesla API class 'InfiniteTeslaConsumerProvider' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.implementation.InfiniteTeslaConsumerProvider)

* Tesla API class 'InfiniteTeslaProducer' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.implementation.InfiniteTeslaProducer)

* Tesla API class 'InfiniteTeslaProducerProvider' could not be loaded (reason: java.lang.ClassNotFoundException: net.darkhax.tesla.api.implementation.InfiniteTeslaProducerProvider)

merci de vos réponses