[LifeRah]

can someone plz tell me how to fix these errors?

D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(21) : error 017: undefined symbol "MAX_PLAYERS"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(24) : error 017: undefined symbol "MAX_PLAYERS"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(25) : error 017: undefined symbol "GetPVarInt"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(76) : error 017: undefined symbol "SendClientMessage"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(77) : error 017: undefined symbol "format"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(77) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(77) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(77) : error 017: undefined symbol "GetPlayerNameEx"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(7 : error 017: undefined symbol "SendClientMessage"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(79) : error 017: undefined symbol "format"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(79) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(79) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(79) : error 017: undefined symbol "GetPlayerNameEx"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(80) : error 017: undefined symbol "SendClientMessage"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(81) : error 017: undefined symbol "format"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(81) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(81) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(81) : error 017: undefined symbol "GetPlayerNameEx"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(82) : error 017: undefined symbol "SendClientMessage"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(83) : error 017: undefined symbol "format"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(83) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(83) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(83) : error 017: undefined symbol "GetPlayerNameEx"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(84) : error 017: undefined symbol "SendClientMessage"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(85) : error 017: undefined symbol "format"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(85) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(85) : warning 202: number of arguments does not match definition
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(85) : error 017: undefined symbol "GetPlayerNameEx"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(86) : error 017: undefined symbol "SendClientMessage"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(90) : error 017: undefined symbol "isInPaintball"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(94) : error 017: undefined symbol "GetPlayerNameEx"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(94) : error 033: array must be indexed (variable "name")
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(95) : error 017: undefined symbol "strlen"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(9 : error 017: undefined symbol "GetPVarInt"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(99) : error 017: undefined symbol "GetPVarInt"
D:\SA-MP Script's\west coast script BY CHC\wcrp\DMREFUND.pwn(100) : error 017: undefined symbol "GetPVarInt"

Compilation aborted.Pawn compiler 3.2.3664 Copyright © 1997-2006, ITB CompuPhase


26 Errors.

please tell me how to fix them?