AlliedModders - Flying Scoutsman Mod

I have this code provided by TribalBlood

Code:

#include <amxmodx>

#include <fakemeta>

#include <xs>



#define PLUGIN "Flying Scoutsman"

#define VERSION "1.0"

#define AUTHOR "TribalBlood"



public plugin_init()

{

                register_plugin(PLUGIN, VERSION, AUTHOR)

                register_forward(FM_TraceLine, "TraceLine_accuracy", 1);

}



public TraceLine_accuracy(const Float: start[3], Float: dest[3], HIT_PARAM, id, ptr)

{

        if(get_user_weapon(id) == CSW_SCOUT && get_user_flags(id) & FL_FLY)

        {

                velocity_by_aim(id, 9999, dest);

                xs_vec_add(start, dest, dest);

                engfunc(EngFunc_TraceLine, start, dest, HIT_PARAM, id, ptr);

        }

}

What it's trying to emulate is the increased accuracy the Scout has in the CSGO game mode while in the air.
But it gives me a lot of lag, what is the error?

HTML Code:

L 06/25/2022 - 00:18:12: [AMXX] Run time error 10 (plugin "Flying_Scoutsman.amxx") (native "get_user_weapon") - debug not enabled!

L 06/25/2022 - 00:18:12: [AMXX] To enable debug mode, add "debug" after the plugin name in plugins.ini (without quotes).