Node-red-contrib-coap (Error)

hello everyone, I have problem with the use of (node-red-contrib-coap )

and when I want to use coap request node, I have an error with this message

Flows stopped due to missing node types.

  • coap request

Welcome to the forum @saeidiot

To get more information please go into your .node-red folder (that is important) and run
npm remove node-red-contrib-coap
then run
npm install node-red-contrib-coap
and post the full output from the install command here (copy/paste please not a screenshot). When pasting it use the </> button at the top of the forum entry window so that the forum does not mess with the format.
Also tell use what hardware and OS you are running on.