Help giys! Code: [17:47:19] [Server thread/CRITICAL]: Unhandled exception executing command 'morph Chicken' in morph: Dynamic field access on pocketmine\nbt\tag\CompoundTag is no longer supported [17:47:19] [Server thread/CRITICAL]: RuntimeException: "Dynamic field access on pocketmine\nbt\tag\CompoundTag is no longer supported" (EXCEPTION) in "vendor/pocketmine/nbt/src/tag/NoDynamicFieldsTrait" at line 29
Did you bother to try the search box before posting another thread? https://forums.pmmp.io/threads/adapting-old-code-using-compoundtags-since-api-3-0-0-alpha12.5975/