Selfmade Error ...

^^hi liebe brotfische eben ma ein Selfmade Gescriptet habe 4 errors

error 017: undefined symbol "PlayerInfo"
C:\Users\masi\Desktop\MY-SAMP Reallife v0.1\MY-SAMP Reallife v0.1\gamemodes\MYSAMP.pwn(753) : warning 215: expression has no effect
C:\Users\masi\Desktop\MY-SAMP Reallife v0.1\MY-SAMP Reallife v0.1\gamemodes\MYSAMP.pwn(753) : error 001: expected token: ";", but found "]"
C:\Users\masi\Desktop\MY-SAMP Reallife v0.1\MY-SAMP Reallife v0.1\gamemodes\MYSAMP.pwn(753) : error 029: invalid expression, assumed zero
C:\Users\masi\Desktop\MY-SAMP Reallife v0.1\MY-SAMP Reallife v0.1\gamemodes\MYSAMP.pwn(753) : fatal error 107: too many error messages on one line

Compilation aborted.Pawn compiler 3.2.3664 Copyright (c) 1997-2006, ITB CompuPhase

4 Errors.

könnt ihr mir helfen danke

751 stock IsAnAdmin(playerid)
752 {
753 if(PlayerInfo[playerid][pAdmin] >= 1)
return 1;
}