Doesn't work "autodrive" in signalling tool

[anotheruser3217]

Describe the error
When choose "autodrive" in signalling tool a script error appears. Also there is no any options of "autodrive", so I can't take neither upps nor sppb markers

How to get:

1. Choose the signalling tool in tools section.
2. In drop-down list choose "autodrive".
3. Get an error

Console output
[metrostroiaddon-dev] addons/metrostroiaddon-dev/lua/weapons/gmod_tool/stools/signalling.lua:527: bad argument #1 to 'TableToJSON' (table expected, got nil)

1. TableToJSON - [C]:-1
2. SendSettings - addons/metrostroiaddon-dev/lua/weapons/gmod_tool/stools/signalling.lua:527
   3. OnSelect - addons/metrostroiaddon-dev/lua/weapons/gmod_tool/stools/signalling.lua:581
   4. ChooseOption - lua/vgui/dcombobox.lua:95
   5. DoClick - lua/vgui/dcombobox.lua:207
   6. OnMouseReleased - lua/vgui/dlabel.lua:237
   7. unknown - lua/vgui/dmenuoption.lua:77

Console output screenshot

Game information

• Garry's mod Version: standard/x64/chromium
• Where the error happens: on any server/local game
• Custom Metrostroi user mods: tried without mods and with
• Operation System: Windows