The DF2301QG V1.0 Voice recognition module works well after a reset but stops working after a while not the same time, sometimes a few minutes is enough , it does not respond anymore to the wake word until I reset the module.

The module is connected to an ESP32 and is running below program:

What can be the reason/solution? Other people have this problem too?

/*!
* @file uart.ino
* @brief Control the voice recognition module via UART
* @n Get the recognized command ID and play the corresponding reply audio according to the ID;
* @n Set the wake-up state duration, set mute mode, set volume, enter the wake-up state, and reset the module
* @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
* @licence The MIT License (MIT)
* @author [qsjhyy](yihuan.huang@dfrobot.com)
* @version V1.0
* @date 2022-12-30
* @url https://github.com/DFRobot/DFRobot_DF2301Q
esp32 SERIAL1 RX=D3=>GROEN TX=D2=>BLAUW
*/
#include "DFRobot_DF2301Q.h"

/**
* @brief DFRobot_URM13_RTU constructor
* @param serial - serial ports for communication, supporting hard and soft serial ports
* @param rx - UART The pin for receiving data
* @param tx - UART The pin for transmitting data
*/
#if (defined(ARDUINO_AVR_UNO) || defined(ESP8266)) // Use software serial
SoftwareSerial softSerial(/*rx =*/4, /*tx =*/5);
DFRobot_DF2301Q_UART DF2301Q(/*softSerial =*/&softSerial);
#elif defined(ESP32) // Use the hardware serial with remappable pin: Serial1
DFRobot_DF2301Q_UART DF2301Q(/*hardSerial =*/&Serial1, /*rx =*/21, /*tx =*/22);
#else // Use hardware serial: Serial1
DFRobot_DF2301Q_UART DF2301Q(/*hardSerial =*/&Serial1);
#endif

void setup()
{
Serial.begin(115200);

#if defined(ARDUINO_SAM_ZERO) // The M0 board needs to be initialized at this time
Serial1.begin(DF2301Q_UART_BAUDRATE);
#endif

// Init the sensor
while( !( DF2301Q.begin() ) ) {
Serial.println("Communication with device failed, please check connection");
delay(3000);
}
Serial.println("Begin ok!");

/**
* @brief Reset the module
*/
// DF2301Q.resetModule();

/**
* @brief Set commands of the module
* @param setType - Set type
* @n DF2301Q_UART_MSG_CMD_SET_VOLUME : Set volume, the set value range 1-7
* @n DF2301Q_UART_MSG_CMD_SET_ENTERWAKEUP : Enter wake-up state; set value 0
* @n DF2301Q_UART_MSG_CMD_SET_MUTE : Mute mode; set value 1: mute, 0: unmute
* @n DF2301Q_UART_MSG_CMD_SET_WAKE_TIME : Wake-up duration; the set value range 0-255s
* @param setValue - Set value, refer to the set type above for the range
*/
// DF2301Q.settingCMD(DF2301Q_UART_MSG_CMD_SET_MUTE, 0);
// DF2301Q.settingCMD(DF2301Q_UART_MSG_CMD_SET_VOLUME, 5);
// DF2301Q.settingCMD(DF2301Q_UART_MSG_CMD_SET_WAKE_TIME, 20);
// DF2301Q.settingCMD(DF2301Q_UART_MSG_CMD_SET_ENTERWAKEUP, 0);

/**
* @brief Play the corresponding reply audio according to the command word ID
* @param CMDID - Command word ID
*/
DF2301Q.playByCMDID(23);

}

void loop()
{
/**
* @brief Get the ID corresponding to the command word
* @return Return the obtained command word ID, returning 0 means no valid ID is obtained
*/
uint8_t CMDID = 0;
CMDID = DF2301Q.getCMDID();
if(0 != CMDID) {
Serial.print("CMDID = ");
Serial.println(CMDID);
}
delay(2000);
}