Adafruit_SSD1306 Display Conflict

I am currently using this board with an Arduino Uno and I cannot get it to work with a generic SSD1306 display.

Everytime I try to use the libraries together like in the code below, i get stuck in the SSD1306 allocation failed section of the code.

If I comment out fonaSS.begin(9600); then I get the display to work but then I can't use the shield.

Any thoughts?

#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <SoftwareSerial.h>
#include "Adafruit_FONA.h"

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define FONA_RX 11 // Microcontroller TX
#define FONA_TX 10 // Microcontroller RX
#define FONA_PWRKEY 6
#define FONA_RST 7

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

uint8_t type;
char imei[16] = {0}; // MUST use a 16 character buffer for IMEI!
unsigned long time_now = 0;
SoftwareSerial fonaSS = SoftwareSerial(FONA_TX, FONA_RX);
SoftwareSerial *fonaSerial = &fonaSS;

float Voltage = 0.0;
const float multiplier = 0.1875F;
void setup() {
  Serial.begin(9600);
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  } else {
    Serial.println(F("SSD1306 allocation success!!"));
  }

    // Clear the buffer
  display.clearDisplay();
  display.display();      // Show initial text
  delay(100);
  display.setTextSize(1); // Draw 2X-scale text
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.println("Hello World");
  display.display();

  // Show initial display buffer contents on the screen --
  // the library initializes this with an Adafruit splash screen.
  display.display();
  delay(2000);

  //LTE Setup
  Adafruit_FONA_LTE fona = Adafruit_FONA_LTE();
  pinMode(FONA_RST, OUTPUT);
  digitalWrite(FONA_RST, HIGH); // Default state
  pinMode(FONA_PWRKEY, OUTPUT);
  delay(100); // For SIM7000
  digitalWrite(FONA_PWRKEY, HIGH);
  //Connect to LTE

  Serial.println(F("FONA basic test"));
  Serial.println(F("Initializing....(May take several seconds)"));
  fonaSS.begin(115200); // Default SIM7000 shield baud rate
  Serial.println(F("Configuring to 9600 baud"));
  fonaSS.println("AT+IPR=9600"); // Set baud rate
  delay(100); // Short pause to let the command run
  fonaSS.begin(9600);
  if (! fona.begin(fonaSS)) {
    Serial.println(F("Couldn't find FONA"));
    while (1); // Don't proceed if it couldn't find the device
  }

  type = fona.type();
  Serial.println(F("FONA is OK"));
  Serial.print(F("Found "));
  switch (type) {
    case SIM800L:
      Serial.println(F("SIM800L")); break;
    case SIM800H:
      Serial.println(F("SIM800H")); break;
    case SIM808_V1:
      Serial.println(F("SIM808 (v1)")); break;
    case SIM808_V2:
      Serial.println(F("SIM808 (v2)")); break;
    case SIM5320A:
      Serial.println(F("SIM5320A (American)")); break;
    case SIM5320E:
      Serial.println(F("SIM5320E (European)")); break;
    case SIM7000A:
      Serial.println(F("SIM7000A (American)")); break;
    case SIM7000C:
      Serial.println(F("SIM7000C (Chinese)")); break;
    case SIM7000E:
      Serial.println(F("SIM7000E (European)")); break;
    case SIM7000G:
      Serial.println(F("SIM7000G (Global)")); break;
    case SIM7500A:
      Serial.println(F("SIM7500A (American)")); break;
    case SIM7500E:
      Serial.println(F("SIM7500E (European)")); break;
    default:
      Serial.println(F("???")); break;
  }

  // Print module IMEI number.
  uint8_t imeiLen = fona.getIMEI(imei);
  if (imeiLen > 0) {
    Serial.print("Module IMEI: "); Serial.println(imei);
  }

  // Set modem to full functionality
  fona.setFunctionality(1); // AT+CFUN=1
  fona.setNetworkSettings(F("TM")); // For Hologram SIM card
  fona.setPreferredMode(38); // Use LTE only, not 2G
  fona.setPreferredLTEMode(1); // Use LTE CAT-M only, not NB-IoT

  //Get Time
  char buffer[23];
  fona.getTime(buffer, 23);  // make sure replybuffer is at least 23 bytes!
  Serial.print(F("Time = ")); Serial.println(buffer);
}

void loop() {}

botletics / SIM7000-LTE-Shield

Adafruit_SSD1306 Display Conflict #94