string.find nil

[snortlines]

[ERROR] addons/moderator/lua/moderator/sh_util.lua:29: bad argument #1 to 'find' (string expected, got nil)

1. find - [C]:-1
2. StringMatches - addons/moderator/lua/moderator/sh_util.lua:29
   3. FindPlayerByName - addons/moderator/lua/moderator/sh_util.lua:49
   4. OnRun - addons/moderator/lua/moderator/commands/sh_ban.lua:12
   5. RunCommand - addons/moderator/lua/moderator/libs/sh_commands.lua:273
   6. ParseCommand - addons/moderator/lua/moderator/libs/sh_commands.lua:253
   7. v - addons/moderator/lua/moderator/sv_moderator.lua:65
   8. unknown - gamemodes/darkrp/gamemode/modules/chat/sv_chat.lua:138

typing !ban provides this error, however when you type !kick you get a message saying: you provided an invalid player.

[snortlines]

Also, trying to ban, kick a player through the menu throws an error too:

[ERROR] addons/moderator/lua/moderator/commands/sh_kick.lua:39: attempt to index local 'menu' (a nil value)

1. OnClick - addons/moderator/lua/moderator/commands/sh_kick.lua:39
   1. DoClick - addons/moderator/lua/moderator/derma/menus/cl_players.lua:95
   2. unknown - lua/vgui/dlabel.lua:232

Edit: Actually this error occurs with a lot of the commands.

[Nookyava]

Please view fork #24. This should fix the issue you're having.