Bus error while deleting elements from an array in C programming

Question

I want to assign sinh which is saved in char* container; to tokens[0] and after assigning I want to empty the container.

For that I made void makeBlank(char* box); function.

In the main() function, I successfully assign tokens[0] = container;.

When I call makeBlank() function the container gets emptied successfully but why does tokens[0] gets emptied too???

Its says Bus Error: 10 when I try to print tokens[0] after calling makeBlank().

Please help me with this.

Here is my code...

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


void makeBlank(char* box){
    int i = strlen(box);
    while(box[0] != '\0'){
        box[i] = '\0';
        i--;
    }
}






int main(){
    char* container = "sinh";
    char* tokens[10];

    
    tokens[0] = container;

    printf("%s is in container\n", container);   // prints sinh í in container
    printf("%s is in tokens\n", tokens[0]);      // prints sinh í in tokens

    makeBlank(container);    // Creates Bus Error: 10

    // printf("%s is in tokens\n", tokens[0]);

    return 0;
}