Can't get Pixhawk to start up properly from SD card

I’m trying to run a script from a Mathworks Simulink tutorial. I followed all the steps in the example and am struggling to figure out what is going wrong. I select my Hardware Board as PX4 Pixhawk 4 and my CMake config is px4_fmu-v5_multicopter (I tried with px4_fmu-v5_default as well). My output during a run is in the screenshot I added and I attached my rc.txt. I also noticed that the GPS works with the normal PX4 firmware but as soon as I try to launch it with the rc.txt file the GPS LEDs don’t turn on and I can’t connect to QGroundControl. Thanks for any help

image

rc.txt:

#Copyright 2020 The MathWorks, Inc.
# This is the custom rc.txt which loads px4_simulink_app on start-up

set IOFW "/etc/extras/px4_io-v2_default.bin"

# The following modules are always started by default rCS
# https://github.com/PX4/Firmware/blob/v1.10.1/ROMFS/px4fmu_common/init.d/rcS
# uorb
# sercon

#
# Set the parameter file if mtd starts successfully.
#
if mtd start
then
    set PARAM_FILE /fs/mtd_params
fi

#
# Load parameters.
#
param select $PARAM_FILE
if ! param load
then
    param reset
fi

#
# Start the socket communication send_event handler.
#
send_event start

#
# Start the resource load monitor.
#
load_mon start

#
# Start system state indicator.
#
rgbled start
rgbled_ncp5623c start
rgbled_pwm start

if param greater LIGHT_EN_BLINKM 0
then
    if blinkm start
    then
        blinkm systemstate
    fi
fi

#
# Start the tone_alarm driver.
# Needs to be started after the parameters are loaded (for CBRK_BUZZER).
# Note that this will still play the already published startup tone.
#
tone_alarm start

param compare CBRK_BUZZER 782090
	if [ $? != 0 -o $STARTUP_TUNE != 1 ]
	then
		tune_control play -t $STARTUP_TUNE
	fi

if [ -f $IOFW ]
then
    if px4io start
    then
        # Try to safety px4 io so motor outputs don't go crazy.
        if ! px4io safety_on
        then
            # px4io did not respond to the safety command.
            px4io stop
            touch fail.txt
        fi
    fi
fi

#Starts GPS driver and Fake a GPS signal (useful for testing)  
gps start -d /dev/ttyS0 -s     

#
# board sensors: rc.sensors
#
set BOARD_RC_SENSORS /etc/init.d/rc.board_sensors
if [ -f $BOARD_RC_SENSORS ]
then
    echo "Board sensors: ${BOARD_RC_SENSORS}"
    sh $BOARD_RC_SENSORS
fi
unset BOARD_RC_SENSORS

battery_status start

sh ${R}etc/init.d/rc.sensors

#
# Start UART/Serial device drivers.
# Note: rc.serial is auto-generated from Tools/serial/generate_config.py
#
sh /etc/init.d/rc.serial

#
# Start the attitude and position estimator.
#
ekf2 start

fmu mode_pwm            # This is required for AUX PWM channels
usleep 1000
px4io safety_off
usleep 1000
px4_simulink_app start
#exit #23-May-2020