Go to your control panel.
Click manage server and make sure the server is stopped.
For Latest Update Instructions:
Go to the settings tab.
Scroll down to the box that says "Reinstall Server" and reinstall.
Please wait for the reinstall to finish then you can start your server again.
For Custom Versions:
1.Go to the "Startup" tab.
Scroll down to the "Forge Version" box and put in the version like this for example, you can find the versions and forge versions here.
Scroll back to the top and select the "Start" button and your good to go!
If you have anymore questions feel free to respond to this article or ask in our Discord!