CC2640R2 microBLE Observer error

  if (status == SUCCESS)
  {
    devAddr = Util_convertBdAddr2Str(pPayload + 2);
    chan = (*(pPayload + len - 5) & 0x3F);
    timeStamp = *(uint32 *)(pPayload + len - 4);

    Display_print3(dispHandle, UBT_ROW_SCAN_1, 0, "ScanInd DevAddr: %s Chan: %d timeStamp: %ul", devAddr, chan, timeStamp);
  }
  else
  {
    /* Rx buffer is full */
    Display_print1(dispHandle, UBT_ROW_SCAN_3, 0, "Rx Buffer Full: %d", ++rxBufFull);
  }