2026-02-18 17:08:02: ERROR[Main]: ModError while shutting down: Runtime er      ror from mod '??' in callback luaentity_GetStaticdata(): /usr/share/luanti      /builtin/common/serialize.lua:33: unsupported type: userdata
25022 2026-02-18 17:08:02: ERROR[Main]: stack traceback:
25023 2026-02-18 17:08:02: ERROR[Main]:   [C]: in function 'error'
25024 2026-02-18 17:08:02: ERROR[Main]:   /usr/share/luanti/builtin/common/seria      lize.lua:33: in function 'count_values'
25025 2026-02-18 17:08:02: ERROR[Main]:   /usr/share/luanti/builtin/common/seria      lize.lua:29: in function 'count_values'
25026 2026-02-18 17:08:02: ERROR[Main]:   /usr/share/luanti/builtin/common/seria      lize.lua:29: in function 'count_values'
25027 2026-02-18 17:08:02: ERROR[Main]:   /usr/share/luanti/builtin/common/seria      lize.lua:36: in function 'count_objects'
25028 2026-02-18 17:08:02: ERROR[Main]:   /usr/share/luanti/builtin/common/seria      lize.lua:69: in function 'serialize'
25029 2026-02-18 17:08:02: ERROR[Main]:   /usr/share/luanti/builtin/common/seria      lize.lua:225: in function </usr/share/luanti/builtin/common/serialize.lua:      216>
25030 2026-02-18 17:08:02: ERROR[Main]: Check debug.txt for details.
25031 2026-02-18 17:08:04: WARNING[Main]: server::ActiveObjectMgr::~ActiveObject      Mgr(): not cleared.