Exception in esp8266 using E22-900M-30S

[SoxxZ]

hi, i'm having this as output when testing sending data with e22-900m-30s module with wemos d1 mini:

--------------- CUT HERE FOR EXCEPTION DECODER ---------------

Soft WDT reset

Exception (4):
epc1=0x402010a0 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

stack>>>

ctx: cont
sp: 3ffffe40 end: 3fffffd0 offset: 0160
3fffffa0: 00000002 feefeffe feefeffe feefeffe
3fffffb0: 3fffdad0 00000000 3ffee784 40203054
3fffffc0: feefeffe feefeffe 3fffdab0 40100fb1
<<<stack<<<

code:

`#include <SX126x.h>
#include <SX127x.h>

#define SX126X
//#define SX127X

#if defined(SX126X)
SX126x LoRa;
#elif defined(SX127X)
SX127x LoRa;
#endif

// Message to transmit
char message[] = "HeLoRa World!";
uint8_t nBytes = sizeof(message);
uint8_t counter = 0;

void setup() {

// Begin serial communication
Serial.begin(38400);

// Begin LoRa radio and set NSS, reset, IRQ, txen, and rxen pin with connected arduino pins
Serial.println("Begin LoRa radio");
#if defined(SX126X)
// Begin LoRa radio for SX126x and LLCC68
int8_t nssPin = 15, resetPin = 16, busyPin = A0, irqPin = -1, txenPin = 0, rxenPin = 2;
if (!LoRa.begin(nssPin, resetPin, busyPin, irqPin, txenPin, rxenPin)){
Serial.println("Something wrong, can't begin LoRa radio");
while(1);
}
// Configure TCXO used in RF module
Serial.println("Set RF module to use TCXO as clock reference");
LoRa.setDio3TcxoCtrl(SX126X_DIO3_OUTPUT_1_8, SX126X_TCXO_DELAY_10);
#elif defined(SX127X)
// Begin LoRa radio for SX126x and LLCC68
int8_t nssPin = 10, resetPin = 9, irqPin = 2, txenPin = 8, rxenPin = 7;
if (!LoRa.begin(nssPin, resetPin, irqPin, txenPin, rxenPin)){
Serial.println("Something wrong, can't begin LoRa radio");
while(1);
}
#endif

// Set frequency to 915 Mhz
Serial.println("Set frequency to 915 Mhz");
LoRa.setFrequency(915000000);

// Set RX gain. RX gain option are power saving gain or boosted gain
Serial.println("Set RX gain to power saving gain");
LoRa.setRxGain(LORA_RX_GAIN_POWER_SAVING); // Power saving gain

// Configure modulation parameter including spreading factor (SF), bandwidth (BW), and coding rate (CR)
Serial.println("Set modulation parameters:\n\tSpreading factor = 7\n\tBandwidth = 125 kHz\n\tCoding rate = 4/5");
uint8_t sf = 7; // Spreading factor: 7
uint32_t bw = 125000; // Bandwidth: 125 kHz
uint8_t cr = 5; // Coding rate: 4/5
LoRa.setLoRaModulation(sf, bw, cr);

// Configure packet parameter including header type, preamble length, payload length, and CRC type
Serial.println("Set packet parameters:\n\tExplicit header type\n\tPreamble length = 12\n\tPayload Length = 15\n\tCRC on");
uint8_t headerType = LORA_HEADER_EXPLICIT; // Explicit header mode
uint16_t preambleLength = 12; // Set preamble length to 12
uint8_t payloadLength = 15; // Initialize payloadLength to 15
bool crcType = true; // Set CRC enable
LoRa.setLoRaPacket(headerType, preambleLength, payloadLength, crcType);

// Set syncronize word for public network (0x3444)
Serial.println("Set syncronize word to 0x3444");
LoRa.setSyncWord(0x3444);

Serial.println("\n-- LORA RECEIVER --\n");

}

void loop() {

// Transmit message and counter
// write() method must be placed between beginPacket() and endPacket()
LoRa.beginPacket();
LoRa.write(message, nBytes);
LoRa.write(counter);
LoRa.endPacket();

// Print message and counter in serial
Serial.print(message);
Serial.print(" ");
Serial.println(counter++);

// Wait until modulation process for transmitting packet finish
LoRa.wait();

// Print transmit time
Serial.print("Transmit time: ");
Serial.print(LoRa.transmitTime());
Serial.println(" ms");
Serial.println();

// Don't load RF module with continous transmit
delay(5000);

}`