io_uring_get_sqe error

[g2px1]

I'm ran provided program on Ubuntu Server 22.04.3 with Kernel version 5.15.0-94-generic (I'm getting Failed to get SQE):

#include <liburing.h>
#include <liburing/io_uring.h>
#include <stdio.h>

int main() {
    struct io_uring ring;
    int ret;

    // Initialize io_uring
    ret = io_uring_queue_init(32, &ring, 0);
    if (ret) {
        fprintf(stderr, "Failed to initialize io_uring: %s\n", strerror(-ret));
        return 1;
    }

    struct io_uring_sqe *sqe = io_uring_get_sqe(&ring);
    if (!sqe) {
        fprintf(stderr, "Failed to get SQE\n");
        io_uring_queue_exit(&ring);
        return 1;
    }

    // Setup a no-op operation (does nothing)
    io_uring_prep_nop(sqe);

    // Submit the SQE
    ret = io_uring_submit(&ring);
    if (ret < 0) {
        fprintf(stderr, "Failed to submit SQE: %s\n", strerror(-ret));
        io_uring_queue_exit(&ring);
        return 1;
    }

    // Wait for completion
    struct io_uring_cqe *cqe;
    ret = io_uring_wait_cqe(&ring, &cqe);
    if (ret < 0) {
        fprintf(stderr, "Failed to wait for CQE: %s\n", strerror(-ret));
        io_uring_queue_exit(&ring);
        return 1;
    }

    // Check result
    if (cqe->res < 0) {
        fprintf(stderr, "No-op operation failed: %s\n", strerror(-cqe->res));
        io_uring_cqe_seen(&ring, cqe);
        io_uring_queue_exit(&ring);
        return 1;
    }

    // Mark this CQE as seen
    io_uring_cqe_seen(&ring, cqe);

    printf("SQE operations are supported.\n");

    // Cleanup
    io_uring_queue_exit(&ring);

    return 0;
}

For the first time, I found this problem in a web server example from here.