Runtime Error Help:

ID:478564
 
Mar 10 2012, 3:32 am
(See the best response by BrickSquadron.)
Code:
    jrAutoStopTourney()
        if(jrtournament)
            world<<output("<center><font size=2><font color=red><b><center>The tournament entry has now ended.","Tournyow")
            world<<output("<font size=1><font color=red><b>The following people are in the tournament:","Tournyow")
            for(var/mob/PC/M in world)if(M.jrtourny)world<<output("[M]","Tournyow")
            if(jrEntries.len<=1&&jrWinners.len<1)
                world<<output("<center><font size=2><font color=#5f9ea0>Not enough players, tournament cancelled.","Tournyow")
                for(var/mob/PC/C in world)
                    if(jrEntries.Find(C))
                        var/amount=125
                        amount=125
                        C<<"<font color=gray>Loser reward: You've been granted 125 levels for just participating the Junior Tournament, [C]!"
                        jrEntries.Remove(C)
                        spawn(70)if(C)
                            while(amount>0)
                                if(!C)return
                                C.exp=C.tnl
                                C.Level_Up()
                                amount-=1
                                sleep(0.155)
                jrKILLTOURNY()
                return
            jrTournament_AI()


Runtime erros which shows about 15 times which eventually crashes game.

runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
  usr: null
  src: KillaNinja (/mob/PC)
  call stack:
KillaNinja (/mob/PC): Level Up()
jrAutoStopTourney()

Other RunTime thats shows and crashes sever.(shows about 25 more times)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max
proc name: Level Up (/mob/proc/Level_Up)
runtime error: Cannot read null.ki_max

Problem description: My sever keeps crashing can someone help ?

Mar 10 2012, 6:23 am
If you want to us to help you, please provide a valid code snippet, the error isn't coming from the function you've posted.
Mar 10 2012, 7:43 am
Best response
It would be nice to see the Level_Up procedure, but this is a null pointer exception meaning your proc is pointing to a null mob. This could possibly mean your Level_Up proc requires a mob as a parameter instead of simply relying on src, but I cannot be sure without seeing Level_Up.

For example, if your procedure requires a mob parameter and you try to call it using src.proc_name() then you'll get an error as demonstrated below.
mob
    var
    {
        some_var = 1
    }
    proc
    {
        doSomething(mob/m)
        {
            return m.some_var
        }
    }

    verb
    {
        Test_Something()
        {
            src.doSomething()   //invalid, requires mob to be passed as parameter. Results in runtime error.
        }

        Test_Something_Correctly()
        {
            doSomething(src)    //valid, mob is passed as parameter. No error.
        }
   }