[19:52:21.219] [Server thread/CRITICAL]: TypeError: "pocketmine\nbt\tag\CompoundTag::setString(): Argument #2 ($value) must be of type string, null given, called in /home/container/plugins/BetterBosses-main/src/cooldogedev/BetterBosses/entity/traits/BossEntityTrait.php on line 164" (EXCEPTION) in "pmsrc/vendor/pocketmine/nbt/src/tag/CompoundTag" at line 266
[19:52:21.219] [Server thread/CRITICAL]: TypeError: "pocketmine\nbt\tag\CompoundTag::setString(): Argument #2 ($value) must be of type string, null given, called in /home/container/plugins/BetterBosses-main/src/cooldogedev/BetterBosses/entity/traits/BossEntityTrait.php on line 164" (EXCEPTION) in "pmsrc/vendor/pocketmine/nbt/src/tag/CompoundTag" at line 266