问指针异常如何解决？

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string.h>
#include<stdlib.h>

//结构体嵌套二级指针练习
//结构体设计
struct TeaCher {
	//老师姓名
	char *name;

	//老师带的学生姓名数组
	char **Studets;



};

void allocateSpace(struct TeaCher ***teacherArray) {
	
	if (teacherArray == NULL)
	{
		return;
	}
	//堆区分配内存
 	struct TeaCher ** ts = malloc(sizeof(struct TeaCher *) * 3);
	//数据赋值
	
	for (int i = 0; i < 3; i++)
	{
		ts[i] = malloc(sizeof(struct TeaCher));//给老师分配内存

		ts[i]->name = malloc(sizeof(char) * 64);//给老师姓名属性分配内存
		sprintf(ts[i]->name, "TeaCher_%d", i + 1);//给老师姓名赋值
	  //给老师带领学生数组分配内存
		ts[i]->name = malloc(sizeof(char *)* 4);
		//给学生姓名赋值

		for (int j = 0; j < 4; j++)
		{
			ts[i]->Studets[j] = (char)malloc(sizeof(char)* 64);

			sprintf(ts[i]->Studets[j], "%s_studet_%d", ts[i]->name, j + 1);
		}
	
	}


	//建立关系
	*teacherArray = ts;

}

//打印操作
void printTeacharArray(struct TeaCher ** teacherArray) {

	for (int i = 0; i < 3; i++)
	{
		printf("%s\n", teacherArray[i]->name);//老师姓名
		for (int j = 0; j < 4; j++)
		{
			printf("   %s\n",teacherArray[i]->Studets[j]);
		}

	}

}

void test01() {
	//老师数组创建
	struct TeaCher ** teacherArray = NULL;

	//分配内存
	allocateSpace(&teacherArray);
	
	//打印所有老师和学生的信息
	printTeacharArray(teacherArray);

}


int main() {

	test01();

	system("pause");
	return EXIT_SUCCESS;
}