[Lordzy]

I viewed that include, the problem is because it's not hooked. Emmet would have probably forgotten to because he codes mostly at late nights.
FIX:

pawn Код:

public OnPlayerTakeDamage(playerid, issuerid, Float:amount, weaponid, bodypart)
{
    if (g_bCallbacks & CB_OnPlayerBurning && weaponid == 37)
    {
        if (!(g_cbPlayers[playerid][e_cbFlags] & e_cbBurning))
        {
            g_cbPlayers[playerid][e_cbFlags] |= e_cbBurning;
            CallLocalFunction("OnPlayerBurning", "dd", playerid, 1);
        }
        g_cbPlayers[playerid][e_cbLastBurn] = GetTickCount();
    }
    #if defined CB_OnPlayerTakeDamage
        return CB_OnPlayerTakeDamage(playerid, issuerid, amount, weaponid, bodypart);
    #else
        return 1;
    #endif
}