Async task crashed

[rjworks]

I got this error upon using //schem paste
[23:25:47] [Asynchronous Worker #1 thread/CRITICAL]: Error: "Call to a member function fastSerialize() on null" (EXCEPTION) in "plugins/WorldStyler-master/src/muqsit/worldstyler/shapes/async/tasks/AsyncChunksChangeTask" at line 108
[23:25:47] [Asynchronous Worker #1 thread/DEBUG]: #0 plugins/WorldStyler-master/src/muqsit/worldstyler/schematics/async/tasks/AsyncSchematicPasteTask(47): muqsit\worldstyler\shapes\async\tasks\AsyncChunksChangeTask->saveChunks(objec
t pocketmine\level\SimpleChunkManager, object pocketmine\math\Vector3, object pocketmine\math\Vector3)
[23:25:47] [Asynchronous Worker #1 thread/DEBUG]: #1 src/pocketmine/scheduler/AsyncTask(84): muqsit\worldstyler\schematics\async\tasks\AsyncSchematicPasteTask->onRun()
[23:25:47] [Asynchronous Worker #1 thread/DEBUG]: #2 (): pocketmine\scheduler\AsyncTask->run()
[23:25:47] [Server thread/CRITICAL]: Could not execute asynchronous task AsyncSchematicPasteTask: Task crashed

[rjworks]

hello busy @Muqsit can you at least tell me what i can do so I can make a pr for fix since you’re busy