Remove Proxmox 5.3 Subscription Notice

Remove Proxmox 5.3 Subscription Notice With the release of Proxmox 5.1, 5.2 and 5.3 you’ll find the code related to the no subscription message that pops up on login has changed and existing instructions for removing it are no longer working.

Like prior methods you will need to SSH to your Proxmox machine or use the console through the PVE web interface.

To remove “You do not have a valid subscription for this server” run the following as a single command and then clear your browser cache:

sed -i.bak "s/data.status !== 'Active'/false/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service
Here are step by step instructions so you can understand what the above command is doing:
Change to working directory
cd /usr/share/javascript/proxmox-widget-toolkit
Make backup of file
cp proxmoxlib.js proxmoxlib.js.bak
Edit the file
nano proxmoxlib.js
Locate this line of code inside the file (use ctrl+w in nano)
if (data.status !== 'Active') {
Replace it with this
if (false) {
Restart the Proxmox service (also be sure to clear your browser cache)
systemctl restart pveproxy.service