Installing node-red-contrib-ocpp

Newbie alert!

Installing the above ocpp but get the following warnings regarding peer dependencies.
Can someone please tell me what to do? I presume I need to install something else - but what exactly?

Warnings don't normally cause a node not to work

You are not installing into the node-red directory.

Easier method:
Use the editor, hamburger menu -> manage palette -> install tab -> search the node -> install.

OK - thanks.

This shows me that the node is already installed.

So is there anything else I need to do?

Normally that should be enough. Is it not working?

So far it does seem to be!

Fingers crossed - thanks!