libuv error creating echo server udp based - c

Question

i am having an issue when i start listening from incoming messages,
server is stuck on uv_run, i had the server working but deleted the
file with the wrong file on compilation and now i am stuck =/
i am using libuv library and trying to make an echo server udp based
#define UDP_SERVER_PORT 8888
static void on_send(uv_udp_send_t* req, int status){
free(req);
if (status) {
fprintf(stderr, "uv_udp_send_cb error: %s\n", uv_strerror(status));
}
}
static void on_read(uv_udp_t *req, ssize_t nread, const uv_buf_t *buf,const struct sockaddr *addr,unsigned flags){
puts(":::::ON READ::::::");
(void)flags;
if (nread < 0) {
fprintf(stderr, "Read error %s\n", uv_err_name(nread));
uv_close((uv_handle_t*) req, NULL);
free(buf->base);
return;
}
if (nread > 0) {
char sender[17] = { 0 };
uv_ip4_name((const struct sockaddr_in*) addr, sender, 16);
fprintf(stderr, "Recv from %s\n", sender);
uv_udp_send_t* res = malloc(sizeof(uv_udp_send_t));
uv_buf_t buff = uv_buf_init(buf->base, nread);
printf("-> Message Received:\n- %s\n", buf->base);
uv_udp_send(res, req, &buff, 1, addr, on_send);
}
free(buf->base);
}
static void alloc_buffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf){
puts(":::::ALLOC BUFFER::::::");
(void)handle;
buf->base = malloc(suggested_size);
bzero(buf->base , suggested_size);
buf->len = suggested_size;
}
uv_udp_t* init_echo_udp_server(uv_loop_t *loop, const char* address, int port){
puts(":::::INIT ECHO SERVER::::::");
uv_udp_t *recv_socket = malloc(sizeof(uv_udp_t));
struct sockaddr_in recv_addr;
uv_ip4_addr(address, port, &recv_addr);
uv_udp_init(loop, recv_socket);
puts(":::::bind::::::");
uv_udp_bind(recv_socket, (const struct sockaddr *)&recv_addr, UV_UDP_REUSEADDR);
puts(":::::start::::::");
uv_udp_recv_start(recv_socket, alloc_buffer, on_read);
return recv_socket;
}
uv_loop_t *loop= 0;
int main(int argc, const char** argv){
loop = uv_default_loop();
uv_udp_t* udp_socket = init_echo_udp_server(loop, "0.0.0.0", UDP_SERVER_PORT);
printf("----- SERVER LISTENING -----\n");
printf("-> UDP port: %d\n", UDP_SERVER_PORT);
uv_run(loop, UV_RUN_DEFAULT);
}