[CommanderDEATH]

/buy command is for when you go into a 24/7 shop and type /buy, then a menu comes up and you can buy stuff like; rope, burger, cellphone, bat... I got the ask and reply command done and it works,thanks so much! One thing though please help with /pay command. The below errors come up when I compile with /pay command in my script:
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(182) : error 017: undefined symbol "dcmd"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(185) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(185) : error 017: undefined symbol "dcmd_pay"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(18 : error 017: undefined symbol "params"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(18 : error 017: undefined symbol "COLOR_RED"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(189) : error 017: undefined symbol "COLOR_GREEN"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(190) : error 017: undefined symbol "COLOR_GREEN"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(194) : error 017: undefined symbol "COLOR_LIGHTBLUE"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(196) : error 017: undefined symbol "COLOR_LIGHTBLUE"
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(199) : warning 217: loose indentation
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(224) : warning 217: loose indentation
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(232) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(232) : warning 217: loose indentation
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(232) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(232) : error 004: function "S@@_OnPlayerEnterVehicle" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(237) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(237) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(237) : error 004: function "S@@_OnPlayerExitVehicle" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(242) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(242) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(242) : error 004: function "S@@_OnPlayerStateChange" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(247) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(247) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(247) : error 004: function "S@@_OnPlayerEnterCheckpoint" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(252) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(252) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(252) : error 004: function "S@@_OnPlayerLeaveCheckpoint" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(257) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(257) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(257) : error 004: function "S@@_OnPlayerEnterRaceCheckpoint" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(262) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(262) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(262) : error 004: function "S@@_OnPlayerLeaveRaceCheckpoint" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(267) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(267) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(267) : error 004: function "S@@_OnRconCommand" is not implemented
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(272) : warning 225: unreachable code
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(272) : error 029: invalid expression, assumed zero
C:\Documents and Settings\MY USERNAME\Desktop\mss\gamemodes\ssfr.pwn(272) : error 004: function "S@@_OnPlayerRequestSpawn" is not implemented

I attached a picture with the pawno code.
* Also don't worry about the color errors I know hot to fix them!
I scripted this command from this tutoriual: https://sampforum.blast.hk/showthread.php?tid=239547
Thank you for helping Rudy and LarryTiger, Please just help me with this last thing. I've been working on this for so long and just want to finish now!