Script to backup folder to backup unraid server - not working

This is my first attempt using rsync.,   I have a script that I use which I got from space invaders video.  I am trying to convert it to back up a nextcloud folder to my backup unraid server.

When I run the script it creates an XML file on the backup server, which indicates 4th from bottom line is incorrect. Id be grateful for some assistance with this to get working.

#!/bin/bash
#backs up
#change the location below to your backup location 
backuplocation="/mnt/disks/192.168.1.201_backup/nextcloud"

# do not alter below this line
datestamp="_"`date '+%d_%b_%Y'`
dir="$backuplocation"/nextcloud/"$datestamp"
# dont change anything below here
if [ ! -d $dir ] ; then
 
            echo "making folder for todays date $datestamp"

            # make the directory as it doesnt exist
            mkdir -vp $dir
        else
            echo "As $dir exists continuing."
            fi

echo "Saving nextcloud files"
rsync -a --no-o /user/nextcloud $dir/xml/
chmod -R 777 $dir
sleep 5
exit