Unable to save schem file

TheN1NJ4LL0 issued server command: /schem save halloween
[2025-09-29 22:19:21.118 ERROR] [Worldedit] Unhandled exception executing command 'schem' in plugin worldedit v2.0.2
[2025-09-29 22:19:21.118 ERROR] [Worldedit] ValueError: byte must be in range(0, 256)
[2025-09-29 22:19:21.118 ERROR] [Worldedit]
[2025-09-29 22:19:21.118 ERROR] [Worldedit] At:
[2025-09-29 22:19:21.118 ERROR] [Worldedit] /home/container/plugins/.local/lib/python3.13/site-packages/endstone_worldedit/commands/schem.py(77): handler
[2025-09-29 22:19:21.118 ERROR] [Worldedit] /home/container/plugins/.local/lib/python3.13/site-packages/endstone_worldedit/utils.py(145): wrapper
[2025-09-29 22:19:21.118 ERROR] [Worldedit] /home/container/plugins/.local/lib/python3.13/site-packages/endstone_worldedit/plugin.py(215): on_command
[2025-09-29 22:19:21.118 ERROR] [Worldedit]