custom system.d service fails at startup

I created a service to keep my vpn alive all the time. Whenever the OpenVPN disconnects for any reason the script is restarted by the service. First the script resolves the address provided by my VPN provider to a set of ip addresses and then updates the firewall accordingly. After that it initiates the VPN connection.

When I start my service like this it works fine:

sudo systemctl start alwayson 

But it should start automatically at system startup but after startup I get:

● alwayson.service - Always on VPN service    Loaded: loaded (/etc/systemd/system/alwayson.service; disabled; vendor preset    Active: inactive (dead) 

after running the command:

systemctl status alwayson 

Here are the scripts:

alwayson.service:

[Unit] Description=Always on VPN service  After=ufw.service  [Service] Type=idle Restart=always RestartSec=3 ExecStart=/bin/bash /home/user/VPN/alwayson-service/run.sh  [Install] WantedBy=multi-user.target 

run.sh:

echo "Updating FireWall.."  # Remove all rules list="$  (ufw status numbered | awk -F"[][]" '{print $  2}' | tac)" for item in $  list do     echo $  item     ufw --force delete $  item done   # let all incoming traffic pass ufw default deny incoming # and block outgoing by default ufw default deny outgoing ufw allow out to  8.8.8.8 ufw allow in from 8.8.8.8 ufw allow out on tun0 ufw allow out 53  # Allow local IPv4 connections ufw allow out to 10.0.0.0/8 ufw allow out to 172.16.0.0/12 ufw allow out to 192.168.0.0/24 ufw allow in from 192.168.0.0/24  # Allow IPv4 local multicasts ufw allow out to 224.0.0.0/24 ufw allow out to 239.0.0.0/8  # Allow local IPv6 connections ufw allow out to fe80::/64 # Allow IPv6 link-local multicasts ufw allow out to ff01::/16 # Allow IPv6 site-local multicasts ufw allow out to ff02::/16 ufw allow out to ff05::/16   # Update Rules for VPN  list="$  (dig +short remote 4-1-gb.cg-dialup.net)" for item in $  list do     echo $  item     ufw allow out to $  item         ufw allow in from $  item done  # Enable the firewall ufw enable  openvpn --config /home/doctor/VPN/UK/openvpn.ovpn --script-security 2 --up /home/doctor/VPN/alwayson-service/up.sh --down /home/doctor/VPN/alwayson-service/down.sh --up-restart 

Can somebody give me some advice on how to run it at startup?