c++ - Can't load textures to the game

I am making a game with SDL and C++. I am trying to render simple image to the screen but I can't. I don't know why, I am not getting any ERROR but I see only black screen.

Here is my code:

game.h

#ifndef GAME_H
#define GAME_H

#include 
#include 

using namespace std;

class game

{
public:

    game();
    ~game();

    void init(char *title,int xpos, int ypos ,int xsize ,int ysize ,bool fullscreen);
    void loop();
    void input();
    void update();

    void render();
    SDL_Renderer* renderer;
    SDL_Window* window;

private:

    const int target_Fps = 60;
    const float TFEF = 1000/60; // time for each frame
    int delta;
    long int start_time;

    bool isrunning = true;
    int fps_counter = 0;
    unsigned int counter = 1;
};

#endif

game.cpp

#include "game.h"
#include "player.h"


player* pla;

game::game()
{
    cout << "something"<    if (SDL_Init(SDL_INIT_EVERYTHING) == 0)
    {
        cout << "another thing" << endl;
        init("game",10,15,500,500,false);

    }

    loop();
}

game::~game()
{
}

void game::init(char *title,int xpos, int ypos ,int xsize ,int ysize ,bool fullscreen)

{
    window = SDL_CreateWindow(title, xpos,  ypos , xsize , ysize , fullscreen);
    renderer = SDL_CreateRenderer(window,-1,0);
    //SDL_SetRenderDrawColor(renderer, 0, 0,0, 255);
    SDL_RenderClear(renderer);
    SDL_RenderPresent(renderer);

    cout << "another another something" << endl;

    pla = new player(renderer,32,32);

    pla->init();

    //SDL_Texture* tex = IMG_LoadTexture(renderer,"res/pss.png");
}

void game::loop()
{
    while(isrunning)
    {
        start_time = SDL_GetTicks();

        input();
        update();
        render();

        delta = SDL_GetTicks() - start_time;
        if (delta < TFEF)
            SDL_Delay(TFEF - delta);

        fps_counter++;


        if (start_time >= 1000 * counter)
        {
            //cout <<"the FPS is : "<< fps_counter << endl;
            counter++;
            fps_counter = 0;
        }
    }
}

void game::input()

{
    SDL_Event e;
    SDL_PollEvent(&e);
    if (e.type == SDL_QUIT)
        SDL_Quit();
}

void game::update(){}

void game::render()

{
    SDL_RenderClear(renderer);

    pla->render(renderer);

    SDL_RenderPresent(renderer);
}

gameobject::~gameobject(){};

player.h

#ifndef PLAYER_H
#define PLAYER_H

#include "gameobject.h"

class gameobject;

class player : public gameobject

{
public:

    void init() override;
    void tick() override;
    void render(SDL_Renderer* renderer) override;
    SDL_Renderer* renderer;
    player(SDL_Renderer* renderer,int pwidth,int pheight);
private:


    ~player() override;
    SDL_Texture* playertex;
};

#endif // PLAYER_H

player.cpp

#include "player.h"

player::player(SDL_Renderer* renderer,int pwidth, int pheight)

{
    this->pos.w = pwidth;
    this->pos.h = pheight;
    this->pos.x = 0;
    this->pos.y = 0;
    this->renderer = renderer;
}

void player::init()
{

    this->playertex= IMG_LoadTexture(renderer,"res/pss.png");
    cout<<"int in player \n"<
    crop.x = 0;
    crop.y = 0;
    crop.w = 32;
    crop.h = 32;

    cout<<"pos x :"<pos.x<    cout<<"pos y : "<pos.y<
    cout<<"pos w : "<pos.w<    cout<<"pos h : "<pos.h<    cout<<"crop x :"<crop.x<    cout<<"crop y :"<crop.y<    cout<<"crop w :"<crop.w<    cout<<"crop h : "<crop.h<}

void player::tick()
{

}

void player::render(SDL_Renderer *renderer)
{
/*
    cout<<"pos x :"<pos.x<    cout<<"pos y : "<pos.y<    cout<<"pos w : "<pos.w<    cout<<"pos h : "<pos.h<    cout<<"crop x :"<crop.x<
    cout<<"crop y :"<crop.y<    cout<<"crop w :"<crop.w<    cout<<"crop h : "<crop.h<*/
 SDL_RenderCopy(renderer,playertex,&crop,&pos);
}


player::~player(){};

here is my files