Program (C) working but giving error and closing?

I've been getting some errors in my program and even the debugger helped.

Here's the .h

#ifndef PROJETOIAPG_PROJETO_H
#define PROJETOIAPG_PROJETO_H
#define TAM_S 30

typedef struct client {
    char name[15], surname[15];
    int id;
} CLIENT;

int main();

int read_client(CLIENT client[]);
#endif

And here is the file .c

#include <stdlib.h>
#include <projeto.h>
#include <stdio.h>

int main(){              
    CLIENT client;
    read_client(&client);
    return 0;
}

int read_client(CLIENT client[]) {
    int i=0,num_c=0;
    FILE fp;
    fp = fopen("Client.txt","r");

    if( fp == NULL ) {
        printf("\nError!\n");
    }
    else
    {
        fscanf(fp , "%d\n" , &num_c);
        for(i=0;i<num_c;i++)
        {
            fscanf(fp , "%d " , &client[i].id);
            fscanf(fp , "%s "  , &client[i].name);
            fscanf(fp , "%s\n" , &client[i].surname);

            printf("\nid:%d " , client[i].id);
            printf("\nname:%s " , client[i].name);
            printf("\nsurname:%s" , client[i].surname);
        }
    }
    fclose(fp);
    return 0;
}

The file is like this

5
1 Manuel Monteiro
2 Maria Fernandes
3 Ines Cornio
4 Fernanda Guimaraes
5 Fernanda Guimaraes

The problem is that I always get different erros about it. If I change the size of the char nome[number] for a bigger number it works for half or doesen't even work at all but even like how it is it gives the error Process finished with exit code -1073740791 (0xC0000409)