That happens when you throw potions and when you use fireworks and console is giving errors:
22:16:17 CRITICAL > Could not tick level "LifeboatSG": Argument 3 passed to pocketmine\event\entity\EntityEffectAddEvent::construct() must be an instance of pocketmine\entity\Effect, null given, called in /storage/emulated/0/PocketMine/src/pocketmine/entity/Living.php on line 264
22:16:17 CRITICAL > Could not tick level "LifeboatSG": Argument 3 passed to pocketmine\event\entity\EntityEffectAddEvent::construct() must be an instance of pocketmine\entity\Effect, null given, called in /storage/emulated/0/PocketMine/src/pocketmine/entity/Living.php on line 264
22:16:18 CRITICAL > Could not tick level "LifeboatSG": Argument 3 passed to pocketmine\event\entity\EntityEffectAddEvent::__construct() must be an instance of pocketmine\entity\Effect, null given, called in /storage/emulated/0/PocketMine/src/pocketmine/entity/Living.php on line 264
22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect()
22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect()
22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect()
22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect()
That happens when you throw potions and when you use fireworks and console is giving errors: 22:16:17 CRITICAL > Could not tick level "LifeboatSG": Argument 3 passed to pocketmine\event\entity\EntityEffectAddEvent::construct() must be an instance of pocketmine\entity\Effect, null given, called in /storage/emulated/0/PocketMine/src/pocketmine/entity/Living.php on line 264 22:16:17 CRITICAL > Could not tick level "LifeboatSG": Argument 3 passed to pocketmine\event\entity\EntityEffectAddEvent::construct() must be an instance of pocketmine\entity\Effect, null given, called in /storage/emulated/0/PocketMine/src/pocketmine/entity/Living.php on line 264 22:16:18 CRITICAL > Could not tick level "LifeboatSG": Argument 3 passed to pocketmine\event\entity\EntityEffectAddEvent::__construct() must be an instance of pocketmine\entity\Effect, null given, called in /storage/emulated/0/PocketMine/src/pocketmine/entity/Living.php on line 264 22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect() 22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect() 22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect() 22:19:43 CRITICAL > Could not tick level "LifeboatSG": Call to undefined method pocketmine\entity\projectile\ThrownPotion::addEffect()
And tnt doesn't do sth.