unexpected advertising stop

Question

Hi, In my project I want to read data from i2c and update in advertising data and the board need to advertise without time out (i.e 24x7) for these I take advertising timeout to 0. But some times unexpectedly it stops advertising after 2 days or 3 days. can any one help me how to debug to found the issue. Initializing part of the advertising is as below 
 static void advertising_init(void)
{
 uint32_t err_code;
 ble_advdata_t advdata;
 ble_advdata_t scanrsp;
 ble_advdata_manuf_data_t manuf_specific_data;

 int8_t tx_power_level = TX_POWER_LEVEL;

 // YOUR_JOB: Use UUIDs for service(s) used in your application.
 static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_CURR_SERVICE, BLE_UUID_TYPE_BLE}}; /**< Universally unique service identifiers. */

 // Build advertising data struct to pass into @ref ble_advertising_init.

 manuf_specific_data.company_identifier = 0x02F4;
 manuf_specific_data.data.p_data = mf_Data;
 manuf_specific_data.data.size = sizeof(mf_Data);

 memset(&advdata, 0, sizeof(advdata));

 advdata.name_type = BLE_ADVDATA_FULL_NAME;
 advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
 advdata.p_manuf_specific_data = &manuf_specific_data;

 memset(&scanrsp, 0, sizeof(scanrsp));
 scanrsp.p_tx_power_level = &tx_power_level;
 scanrsp.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
 scanrsp.uuids_complete.p_uuids = m_adv_uuids;


	// ble_advdata_conn_int_t connintvls;
	// connintvls.min_conn_interval = MIN_CONN_INTERVAL;
	// connintvls.max_conn_interval = MAX_CONN_INTERVAL;
	// scanrsp.p_slave_conn_int = &connintvls;

 ble_adv_modes_config_t options = {0};
 options.ble_adv_fast_enabled = BLE_ADV_FAST_ENABLED;
 options.ble_adv_fast_interval = APP_ADV_INTERVAL;
 options.ble_adv_fast_timeout = APP_ADV_TIMEOUT_DEFAULT;

 err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
 APP_ERROR_CHECK(err_code);
}