Bluetooth migration issues

Hi,

I ported the routine on the routine and I had a problem.After the transplantation, the program runs to the ble_peripheral_start () function and crashes.What may be the cause？Below is my code.

void ble_peripheral_task(void *params)
{
printf("\n*** Custom BLE Service Demonstration ***\n\n\r");

// in case services which do not use svc are all disabled, just suppress -Wunused-variable

// /* register ble_peripheral task to be monitored by watchdog */
// wdog_id = sys_watchdog_register(false);

/* Get task's handler */
//ble_task_handle = OS_GET_CURRENT_TASK();

srand(time(NULL));
//
ble_peripheral_start(); //crashes
ble_register_app ();

ble_gap_device_name_set("Custom BLE Service", ATT_PERM_READ);

user_sev_init();

void ble_peripheral_task_init(void)
{

/* Initialize BLE Manager */
ble_mgr_init();
/* Start the BLE Peripheral application task. */
OS_TASK_CREATE("BLE Peripheral", /* The text name assigned to the task, for
debug only; not used by the kernel. */
ble_peripheral_task, /* The function that implements the task. */
NULL, /* The parameter passed to the task. */
1024, /* The number of bytes to allocate to the
stack of the task. */

BLE_PERIPHERAL_TASK_PRIORITY,/* The priority assigned to the task. */
ble_task_handle); /* The task handle. */
OS_ASSERT(ble_task_handle);
}