After fresh installation - no endpoint found

[derhoeppi]

First of all - this is a great app for my roomba. I use this app to years hoste on Raspberry 3. No the time is come to migrate them to a new system. And there is my problem. I installed them like npm install and copy the default.json (config) informations to the new system.
If i run npm start then it starts but if i request a command then i get the following:

`

rest980@2.1.0 start
node ./bin/www
(node:10065) [DEP0040] DeprecationWarning: The punycode module is deprecated. Please use a userland alternative instead.
(Use node --trace-deprecation ... to show where the warning was created)
rest980:server Listening on port 3000 +0ms
POST /api/local/action/stop 404 6.741 ms - 2337
Error: Endpoint not found.
at /opt/roomba/rest980/app.js:62:13
at Layer.handle [as handle_request] (/opt/roomba/rest980/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/opt/roomba/rest980/node_modules/express/lib/router/index.js:317:13)
at /opt/roomba/rest980/node_modules/express/lib/router/index.js:284:7
at Function.process_params (/opt/roomba/rest980/node_modules/express/lib/router/index.js:335:12)
at next (/opt/roomba/rest980/node_modules/express/lib/router/index.js:275:10)
at /opt/roomba/rest980/node_modules/express/lib/router/index.js:635:15
at next (/opt/roomba/rest980/node_modules/express/lib/router/index.js:260:14)
at Function.handle (/opt/roomba/rest980/node_modules/express/lib/router/index.js:174:3)
at router (/opt/roomba/rest980/node_modules/express/lib/router/index.js:47:12)
at Layer.handle [as handle_request] (/opt/roomba/rest980/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/opt/roomba/rest980/node_modules/express/lib/router/index.js:317:13)
at /opt/roomba/rest980/node_modules/express/lib/router/index.js:284:7
at Function.process_params (/opt/roomba/rest980/node_modules/express/lib/router/index.js:335:12)
at next (/opt/roomba/rest980/node_modules/express/lib/router/index.js:275:10)
at /opt/roomba/rest980/node_modules/express/lib/router/index.js:635:15
at next (/opt/roomba/rest980/node_modules/express/lib/router/index.js:260:14)
at jsonParser (/opt/roomba/rest980/node_modules/body-parser/lib/types/json.js:110:7)
at Layer.handle [as handle_request] (/opt/roomba/rest980/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/opt/roomba/rest980/node_modules/express/lib/router/index.js:317:13)
at /opt/roomba/rest980/node_modules/express/lib/router/index.js:284:7
at Function.process_params (/opt/roomba/rest980/node_modules/express/lib/router/index.js:335:12)
`

I don't know where i can locate the failure to solve it. Any idea?