warning: format ‘%d’ expects type ‘int *’, but argument 2 has type ‘int’

Question

So I'm new to C and am having trouble with whats happening with this warning. What does the warning mean and how can i fix it. The code i wrote is here:

void main(void)
{
  char* name = "";
  int age = 0;
  printf("input your name\n");
  scanf("%s\n", name);
  printf("input your age\n");
  scanf("%d\n", age);
  printf("%s %d\n", name, age);

}