[Halt]

Can anyone shed some light on this error? I think I've provided all the code needed.

L 09/14/2019 - 10:58:26: [SM] Blaming: dstrikeperks1.smx
L 09/14/2019 - 10:58:26: [SM] Call stack trace:
L 09/14/2019 - 10:58:26: [SM]   [0] DataPack.ReadFloat
L 09/14/2019 - 10:58:26: [SM]   [1] Line 157, D:\Dev\Programming\Pawn\sourcemod\scripting\dstrikeperks1.sp::Timer_ArtyDetonate
L 09/14/2019 - 10:58:26: [SM] Exception reported: DataPack operation is out of bounds.

PHP Code:

    DataPack dp_ShotPack = new DataPack();
    
    for (int i; i < NUM_EXPLOSIONS; i++)
    {
        CreateDataTimer(f_ShotTime+5.0, Timer_ArtyDetonate, dp_ShotPack);

        dp_ShotPack.WriteFloat(f_vCoords[0]);
        dp_ShotPack.WriteFloat(f_vCoords[1]);
        dp_ShotPack.WriteFloat(f_vCoords[2]);
    }

public Action Timer_ArtyDetonate(Handle timer, DataPack dp_ShotPack)
{
    float f_vCoords[3];
    dp_ShotPack.Reset();
    DispatchSpawn(iAmbientLight);
    TeleportEntity(iAmbientLight, f_vCoords, NULL_VECTOR, NULL_VECTOR);
    CreateTimer(0.3, Timer_TurnOffLight, EntIndexToEntRef(iAmbientLight));
    f_vCoords[0] = dp_ShotPack.ReadFloat() + GetRandomFloat(-100.0, 100.0); //Line 157
    f_vCoords[1] = dp_ShotPack.ReadFloat() + GetRandomFloat(-100.0, 100.0);
    f_vCoords[2] = dp_ShotPack.ReadFloat();