mail_mod/ui/events.lua:71: attempt to index a nil value #64
Description
When a user clicks any of the column headers, the server crashes.
2023-04-14 21:54:06: ERROR[Main]: ServerError: AsyncErr: Lua: Runtime error from mod 'mail' in callback on_playerReceiveFields(): ...t/5.6.1/Minetest_test/bin/../mods/mail_mod/ui/events.lua:71: attempt to index a nil value
2023-04-14 21:54:06: ERROR[Main]: stack traceback:
2023-04-14 21:54:06: ERROR[Main]: ...t/5.6.1/Minetest_test/bin/../mods/mail_mod/ui/events.lua:71: in function 'func'
2023-04-14 21:54:06: ERROR[Main]: ...inetest_test/bin/../builtin/profiler/instrumentation.lua:107: in function <...inetest_test/bin/../builtin/profiler/instrumentation.lua:100>
2023-04-14 21:54:06: ERROR[Main]: .../mt/5.6.1/Minetest_test/bin/../builtin/game/register.lua:432: in function <.../mt/5.6.1/Minetest_test/bin/../builtin/game/register.lua:418>
2023-04-14 23:20:19: ERROR[Main]: ServerError: AsyncErr: Lua: Runtime error from mod 'mail' in callback on_playerReceiveFields(): ...t/5.6.1/Minetest_test/bin/../mods/mail_mod/ui/events.lua:71: attempt to index a nil value
2023-04-14 23:20:19: ERROR[Main]: stack traceback:
2023-04-14 23:20:19: ERROR[Main]: ...t/5.6.1/Minetest_test/bin/../mods/mail_mod/ui/events.lua:71: in function 'func'
2023-04-14 23:20:19: ERROR[Main]: ...inetest_test/bin/../builtin/profiler/instrumentation.lua:107: in function <...inetest_test/bin/../builtin/profiler/instrumentation.lua:100>
2023-04-14 23:20:19: ERROR[Main]: .../mt/5.6.1/Minetest_test/bin/../builtin/game/register.lua:432: in function <.../mt/5.6.1/Minetest_test/bin/../builtin/game/register.lua:418>
For my reference 4198