Password protect on nanopi neo

Hello.

I try to add a password on my VirtualHere Server 4.5.0
I have a licence. I followed this page : https://www.virtualhere.com/authorization

Windows client V5.4.2 NOT running as a Service.

So I stop virtualhere service and in the /root/config.ini I added this line :
clientAuthorization=/home/root/auth.sh "$VENDOR_ID$" "$PRODUCT_ID$" "$CLIENT_ID$" "$CLIENT_IP$" "$PRODUCT_SERIAL$" "$PASSWORD$" "$DEVPATH$" "$NICKNAME$" "$NUM_BINDINGS$"

Then in /home/root/ I created the file auth.sh and I added thoses line inside :
#!/bin/bash
# Example script for performing basic user authorization for virtualhere
# Also includes a simple password protection mechanism for accessing a device
# Return 3 if the user needs to provide a username AND password (or the password is incorrect) to use the device
# Return 2 if the user needs to provide ONLY a password (or the password is incorrect) to use the device. The username defaults to the client OS username
# Return 1 if the user is allowed to access this device
# Return 0 if the user is not allowed to access this device
# Parameters are passed in as:
# $1 = VENDOR_ID
# $2 = PRODUCT_ID
# $3 = CLIENT_ID
# $4 = CLIENT_IP
# $5 = PRODUCT_SERIAL
# $6 = PASSWORD
# $7 = DEVPATH
# $8 = NICKNAME
# $9 = NUM_BINDINGS
logger "Authorizing -> '$1' '$2' '$3' '$4' '$5' '$6' '$7' '$8' '$9'"
# "test" = "098f6bcd4621d373cade4e832627b4f6" as an MD5 hash https://www.md5hashgenerator.com/
if [ "$6" = "098f6bcd4621d373cade4e832627b4f6" ]; then
echo "Password ok"
else
exit 2
fi
exit 1

I reboot the server and when i try to connect to any USB I got this error : "there was an error using this device"

Any Idea?

Thanks