ESP8266 -System does a watch dog reset and outputs a stack Exception (28) after

I am trying to connect my ESP-12E NodeMCU v1.0 to a firebase realtime database, whose values are controlled by a simple app I created in MIT App inventor.

My code is quite simple, and I’ve searched everywhere for the solution but according to the stack my getString(“FB”+Number).toInt() seems to be the issue but only on the 100th iteration of void loop. Below is my code and the error.

I am currently using the latest firebase-arduino library, and I’m using ArduinoJson v5 library. I’ve tried adding yield() around the line but it doesn’t do anything.

Any suggestions?

CODE:
`#include <ESP8266WiFi.h> // 1
#include <pgmspace.h>
#include <FirebaseArduino.h>
#define FIREBASE_HOST “XXXXXXXXXX” //Your Firebase Project URL goes here without “http:” , “” and “/”
#define FIREBASE_AUTH “XXXXXXXXXXXXXXXXX”

const char* ssid = “XXXXXXXX”;//type your ssid
const char* password = “XXXXXXXXX”;//type your password
int i = 1;
int rel;
int relayPin [9] = {12345, 5, 4, 0, 2, 14, 12, 13, 15};
int previousVal [9] ;
int count = 0;

WiFiServer ESPserver(9080);//Service Port
void setup()
{
Serial.begin(115200);
ESP.wdtDisable();
for (int i = 1; i < 9; ++i) {
pinMode(relayPin*, OUTPUT);*
_ digitalWrite(relayPin*, HIGH);_
_
} // 20*_
* Serial.println();*
* Serial.println();*
* Serial.print("Connecting to: ");*
* Serial.println(ssid);*
* WiFi.begin(ssid, password);*
* Serial.println();*
* delay(5000);*
* while (WiFi.status() != WL_CONNECTED)
_
{_
_
delay(100); _
_ Serial.print("");
* }*
* Serial.println("");*
* Serial.println(“WiFi connected”);*
* ESPserver.begin();*
* Serial.println(“Server started”);*
* Serial.println("Connecting to Firebase Database … ");*
* Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
_
Serial.println(“Connected”);*

}
void firebasereconnect()
{
* Serial.println(“Trying to reconnect”);*
* Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
_
}_
void loop() {
_
++count;_
_
Serial.println(count);_
_
if ((i == 0) || (i == 9)) {_
_
i = 1; //50*_
* }*

* String Number = String(i);*
* yield();*
rel = Firebase.getString(“FB” + Number).toInt();
* yield();*
* if (rel == 1) {*
_ digitalWrite(relayPin*, LOW);
++i;
return;
}
yield();
if (rel == 0) {
digitalWrite(relayPin, HIGH);
++i;
return;
}
}*_</em></em> <em><em><em>_**ERROR:**_</em></em></em> <em><em>_*Exception (28):
epc1=0x40210e10 epc2=0x00000000 epc3=0x00000000 excvaddr=0x028a02ac depc=0x00000000
>>>stack>>>*

ctx: cont
sp: 3ffffaf0 end: 3fffffc0 offset: 01a0
*3ffffc90: 00000001 00000003 3fff0700 40204440 *
*3ffffca0: 3ffffcf0 3fffff70 3fff0700 40205310 *
*3ffffcb0: 3fffdad0 3fffff70 3fffff20 40203d78 *
*3ffffcc0: 3fffdad0 3ffffcf0 3ffffcf0 40202b38 *
*3ffffcd0: 00000002 3fffff70 3fffff20 40202ba8 *
*3ffffce0: 3fffdad0 3fffff70 3ffe8803 40203c48 *
*3ffffcf0: 00220000 40103b3e 80fed640 40211530 *
*3ffffd00: 00000000 a0000000 00000000 0000001c *
*3ffffd10: 00004000 00000000 00004000 00000000 *
*3ffffd20: 3ffffe80 00000000 3ffffe80 40217f0a *
*3ffffd30: 0000a000 3ffffe23 3ffecd70 3ffed89c *
*3ffffd40: 40102940 00080000 40213cfd 00000001 *
*3ffffd50: 3ffffe80 00000001 3ffffe80 40217f0a *
*3ffffd60: 3ffffde0 3ffffe22 3ffffd90 00000000 *
*3ffffd70: 40102628 3fffc200 00000022 40217e40 *
*3ffffd80: 3ffffe80 3ffffe22 3ffffde0 40213dfc *
*3ffffd90: 00000001 00000000 6000001c 3ffffeff *
*3ffffda0: 3ffe8300 00000000 0000000a 40256570 *
*3ffffdb0: 3ffffe23 00000004 00000000 00000000 *
*3ffffdc0: 00000038 0000007e 00000002 3ffe8ac5 *
*3ffffdd0: 00000000 3ffe8ac4 3ffffe80 4021831b *
*3ffffde0: 00000000 ffffffff ffffffff 00000000 *
*3ffffdf0: 00000001 00000001 40302064 00000100 *
*3ffffe00: 40103873 00040000 00000000 00040000 *
*3ffffe10: 00000200 40103870 00040000 00000030 *
*3ffffe20: 0034d640 401027d7 3ffed640 017c6520 *
*3ffffe30: 3ffe9d70 2c9f0300 00000000 3fffc278 *
*3ffffe40: 3fffff10 3fffff00 0000000c 3ffe8300 *
*3ffffe50: 00000001 00000009 00000001 ffffffff *
*3ffffe60: 40207083 00000030 0000001e 3ffeee88 *
*3ffffe70: 0000000a 00000004 3fffff88 402144c8 *
*3ffffe80: 3fffff31 00000000 7ffffffe ffff0208 *
*3ffffe90: 3fffff30 7fffffff 00000001 3ffe8528 *
*3ffffea0: 3ffeecc0 3fffdad0 3ffeee88 3ffeed58 *
*3ffffeb0: 4020590c 3ffeed58 3ffffefd 40205918 *
*3ffffec0: 4020590c 3ffeed58 3ffffefd 40205be1 *
*3ffffed0: 00000031 0000000a 3ffffefc 40205cc5 *
*3ffffee0: 00000001 3fffc6fc 3fffff10 3fffff00 *
*3ffffef0: 00000008 00000001 3fffff88 40206288 *
*3fffff00: 0000000a 00000004 00000000 00000002 *
*3fffff10: 3ffffcf0 00000000 64657463 80feee88 *
*3fffff20: 402114e0 3fff06fc 00000000 3ffeed20 *
*3fffff30: 3fff0890 402114b8 00000001 00000000 *
*3fffff40: 00000100 3ffeed20 3fffff00 3ffeee88 *
*3fffff50: 80ffff88 3fffff88 3fffff7c 402067c5 *
*3fffff60: 3fffdad0 00000000 3ffe8528 40201234 *
*3fffff70: 00000030 3ffeecc4 81feed58 00344246 *
3fffff80: 00000000 83000000 00000034 4010017c
3fffff90: 81ffdad0 00000000 3ffeee48 4020705d
3fffffa0: 3fffdad0 00000000 3ffeee48 4020716c
3fffffb0: feefeffe feefeffe 3ffe8580 40100ddd
<<<stack<<<

ets Jan 8 2013,rst cause:2, boot mode:(3,6)
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v482516e3
~ld

⸮cl s⸮nadph

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