WDT reset cause 4 after reinstalling Arduino - c++

Question

I try to control my LED strip with an Android app.
I reinstalled the Arduino IDE since I didn't like the Windows-store version. The serial monitor broke for whatever reason so I switched back to the Windows-store version.
But now I'm getting a WDT reset error, which I can't seem to overcome.
I'm also using Adafruit_NeoPixel and wherever I put "ledstrip.begin" or "ledstrip.show" seems to break it.
#include <ESP8266WiFi.h>
#include <Adafruit_NeoPixel.h>
byte RED = 14;
byte GREEN = 12;
byte BLUE = 13;
byte PIN_COUNT = 20;
Adafruit_NeoPixel ledstrip = Adafruit_NeoPixel(PIN_COUNT, 6, NEO_RGB + NEO_KHZ800); //(num of leds, )
WiFiServer server(port);
void setup()
{
Serial.begin(115200);
delay(10);
ledstrip.begin();
Serial.print("Connecting to: ");
Serial.println(ssid);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
byte tries;
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
tries++;
Serial.println(".");
if (tries == 5)
{
Serial.println("Connection failed");
return;
}
}
Serial.println("\nWiFi connected");
server.begin();
Serial.println("Server URL: ");
Serial.print(WiFi.localIP());
}
void print_tokens(char* strings)
{
byte index = sizeof(strings);
for (int n = 0; n < index; n++)
{
Serial.println(strings[n]);
}
}
char *tokenize_request(String request)
{
char requestArray[1024];
char *ptr = NULL;
byte index = 0;
char *strings[10];
strcpy(requestArray, request.c_str());
ptr = strtok(requestArray, ";");
while (ptr != NULL) {
strings[index] = ptr;
index++;
ptr = strtok(NULL, ";");
}
return *strings;
}
void loop()
{
WiFiClient responder = server.available();
if (!responder)
{
return;
}
while (!responder.available())
{
delay(1);
}
String request = responder.readStringUntil('#');
char *strings[10] = {tokenize_request(request)};
print_tokens(*strings);
int mode = atoi(strings[0]);
int R = atoi(strings[1]);
int G = atoi(strings[2]);
int B = atoi(strings[3]);
if (mode == 1)
{
ledstrip.setPixelColor(5, R, G, B);
}
if (mode == 0)
{
ledstrip.setPixelColor(5, 0, 0, 0);
}
ledstrip.show();
delay(1);
Serial.println("------------------------------------------------------------------");
}
Serial monitor output: