[yokomo]

**Edit**
Sorry i didn't notice your sma.

Your main problem is:

PHP Code:

// Forward Set Model
public fw_SetModel(entity, const model[])
{
    // We don't care
    if (strlen(model) < 8)
        return FMRES_IGNORED
    
    // Narrow down our matches a bit
    if (model[7] != 'w' || model[8] != '_')
        return FMRES_IGNORED
    
    // Get damage time of grenade
    static Float:dmgtime
    pev(entity, pev_dmgtime, dmgtime)
    
    // Grenade not yet thrown
    if (dmgtime == 0.0)
        return FMRES_IGNORED
    
    new owner = pev(entity, pev_owner)

    // Grenade's owner is zombie?
    if (zp_core_is_zombie(owner))
        return FMRES_IGNORED
    
    // Smoke Grenade
    if (model[9] == 's' && model[10] == 'm')
    {
        if (has_flare[owner])
        {
            // Build flare's color
            static rgb[3]
            switch (get_pcvar_num(cvar_grenade_flare_color))
            {
                case 0: // white
                {
                    rgb[0] = 255 // r
                    rgb[1] = 255 // g
                    rgb[2] = 255 // b
                }
                case 1: // red
                {
                    rgb[0] = random_num(50,255) // r
                    rgb[1] = 0 // g
                    rgb[2] = 0 // b
                }
                case 2: // green
                {
                    rgb[0] = 0 // r
                    rgb[1] = random_num(50,255) // g
                    rgb[2] = 0 // b
                }
                case 3: // blue
                {
                    rgb[0] = 0 // r
                    rgb[1] = 0 // g
                    rgb[2] = random_num(50,255) // b
                }
                case 4: // random (all colors)
                {
                    rgb[0] = random_num(50,200) // r
                    rgb[1] = random_num(50,200) // g
                    rgb[2] = random_num(50,200) // b
                }
                case 5: // random (r,g,b)
                {
                    switch (random_num(1, 3))
                    {
                        case 1: // red
                        {
                            rgb[0] = random_num(50,255) // r
                            rgb[1] = 0 // g
                            rgb[2] = 0 // b
                        }
                        case 2: // green
                        {
                            rgb[0] = 0 // r
                            rgb[1] = random_num(50,255) // g
                            rgb[2] = 0 // b
                        }
                        case 3: // blue
                        {
                            rgb[0] = 0 // r
                            rgb[1] = 0 // g
                            rgb[2] = random_num(50,255) // b
                        }
                    }
                }
            }

            // Give it a glow
            fm_set_rendering(entity, kRenderFxGlowShell, rgb[0], rgb[1], rgb[2], kRenderNormal, 16);
            
            // And a colored trail
            message_begin(MSG_BROADCAST, SVC_TEMPENTITY)
            write_byte(TE_BEAMFOLLOW) // TE id
            write_short(entity) // entity
            write_short(g_trailSpr) // sprite
            write_byte(10) // life
            write_byte(10) // width
            write_byte(rgb[0]) // r
            write_byte(rgb[1]) // g
            write_byte(rgb[2]) // b
            write_byte(200) // brightness
            message_end()
            
            // Set grenade type on the thrown grenade entity
            set_pev(entity, PEV_NADE_TYPE, NADE_TYPE_FLARE)
            
            // Set flare color on the thrown grenade entity
            set_pev(entity, PEV_FLARE_COLOR, rgb)

            engfunc ( EngFunc_SetModel, entity, g_model_grenade_flare_w )
            client_print(owner, print_chat, "[ZP] model Flare W")
            has_flare[owner] = false
            
            return FMRES_SUPERCEDE
        }

        if (has_heart[owner])
        {
            fm_set_rendering(entity, kRenderFxGlowShell, 255, 128, 0, kRenderNormal, 16)
            
            message_begin(MSG_BROADCAST, SVC_TEMPENTITY)
            write_byte(TE_BEAMFOLLOW) // TE id
            write_short(entity) // entity
            write_short(g_trailSpr) // sprite
            write_byte(10) // life
            write_byte(10) // width
            write_byte(255) // r
            write_byte(0) // g
            write_byte(0) // b
            write_byte(200) // brightness
            message_end()
            
            set_pev(entity, PEV_NADE_TYPE, NADE_TYPE_HEART)
            engfunc ( EngFunc_SetModel, entity, g_model_grenade_heart_w)
            client_print(owner, print_chat, "[ZP] model Heart W")
            //has_heart[owner] = false
            
            return FMRES_SUPERCEDE
        }
    }
    
    return FMRES_IGNORED
}