Call for tail to read /var/log/syslog in a script results in "Permission Denied" in syslog

This script runs when a user connects to my openvpn server using client-connect. When ran, it should check the most recent 50 log lines in syslog to grab the name of the profile that connected.

The issue I am running into, is when the script tries to read from syslog using tail, it get denied do to insufficient permissions. Here are the permissions of the script itself, plus the owner, myuser

ls -l /etc/openvpn/myscript.sh
-rwxr-xr-x 1 myuser adm 1274 

Running groups myuser produces myuser : adm sudo so myuser is in adm and should have to proper permissions to read /var/log/syslog.

I've added myuser ALL=(ALL) NOPASSWD: /etc/openvpn/myscript.sh to the sudoers file, for when I had sudo tail in my script. This didn't change anything.

What else could be blocking this script from accessing /var/log/syslog?

Edit: Adding a sanitized version of the script.

#!/bin/bash

\# Set the path to the OpenVPN log file
LOG_FILE=/var/log/syslog

\# Set the email settings
SMTP_SERVER="smtp server here"
SMTP_PORT="xxx"
FROM_ADDRESS="fromMe@mail.com"
TO_ADDRESS="toMe@mail.com"
SUBJECT="Alert: OpenVPN Connection Established"
BODY1="A client has connected to the OpenVPN server using the profile: \""
BODY2="\". The source IP is: "
BODY3=". If you have not recently connected to the OpenVPN server from this IP, please remove the profile ASAP."


sendEmail() {
    logger "Starting email send.."
    # Get the last line of the OpenVPN log file
    LAST_LINE=$(sudo -u myuser tail -n 50 /var/log/syslog | grep -m 1 "Peer Connection Initiated")

    logger "Outside the if"
    logger "Last Line Contents --> $LAST_LINE"
    # Check if the last line of the log file contains "Peer Connection Initiated"
    if echo "$LAST_LINE" | grep -q "Peer Connection Initiated"; then
        logger "Inside the if"
        #extract profile name from brackets in string
        IP=$(echo "$LAST_LINE" | cut -d "]" -f4 | cut -d ":" -f1)
        PROFILE=$(echo "$LAST_LINE" | cut -d "]" -f2 | cut -d "[" -f2)
        BODY0="$BODY1$PROFILE$BODY2$IP$BODY3"
        # If the last line contains the string, send an email notification
        msmtp -a default $TO_ADDRESS <<EOF
From: $FROM_ADDRESS
To: $TO_ADDRESS
Subject: $SUBJECT

$BODY0
EOF

    fi
}

sendEmail

It's definitely not the cleanest script I'm sure as I worked with ChatGPT to create it. But hopefully this can help.