[Saint Sinner]

I did as you said and still not work

#include <amxmodx>
#include <engine>
#include <fakemeta>

new Entity

new const DATE[] = "models/TEST.mdl"

new maxplayers
public plugin_init() 
{
    register_clcmd("say /x", "remove")
    register_clcmd("say /z", "create")
    maxplayers = get_maxplayers()
}

public remove() 
{
    new ent = -1;
    while ((ent = find_ent_by_class(ent, "fox_wall")))
    {
	remove_entity(ent); 
    }
}

public create() 
{
    CreateEntity()
}

public plugin_precache() 
{
    precache_model(DATE)
    CreateEntity()
}

CreateEntity()
{     
    Entity = create_entity( "info_target" );

    new Float:PlayerOrigin[3]
    new Float:fDistance
    new Float:fEntOrigin[ 3 ]
       
    for(new i = 1 ; i <= maxplayers; i++)
    {
        pev(i, pev_origin, PlayerOrigin)
        pev( Entity , pev_origin , fEntOrigin )
        fDistance = get_distance_f( fEntOrigin , PlayerOrigin )
        
        if( fDistance >= 500.0)
        {
            client_print(i , print_center, "Distance to entity: %.2f", fDistance )
        }
    }

    if( is_valid_ent(Entity) )
    {
        entity_set_string( Entity , EV_SZ_classname, "fox_wall");
        entity_set_int( Entity , EV_INT_solid, SOLID_BBOX);
        entity_set_model( Entity , DATE );
        entity_set_size( Entity , Float:{ -350.0, -10.0, 0.0 }, Float:{ 350.0, 10.0, 10.0 } );      
        entity_set_origin( Entity, Float:{ 1066.52, -1025.00, -551.00 } );
    }
        
    return;
}