Node.js Unexpected token ‘.’

I’m new in linux, js and node.js development so sorry if this question is stupid…but.

I have my first app on my local test server. When I go to the folder with the code and type npm start, everything works correctly.
BUT
I wanted to run it on the background and use systemctl to work with the app. But When I use sudo systemctl start “my app” I’m getting

Please help me :/

Unexpected token ‘.’

Stopping My Eclipse Application... eclipse.service: Deactivated successfully. Stopped My Eclipse Application. Started My Eclipse Application. [email protected] start nodemon server.js [nodemon] 3.1.0 [nodemon] to restart at any time, enter `r>
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,cjs,>
[nodemon] starting `node server.js`
/var/www/projects/eclipse/node_modules/mon>
session: options?.session,
^
SyntaxError: Unexpected token '.'
at wrapSafe (internal/modules/cjs/load>
at Module._compile (internal/modules/c>
at Object.Module._extensions..js (inte>
at Module.load (internal/modules/cjs/l>
at Function.Module._load (internal/mod>
at Module.require (internal/modules/cj>
at require (internal/modules/cjs/helpe>
at Object.<anonymous> (/var/www/projec>
at Module._compile (internal/modules/c>
at Object.Module._extensions..js (inte>
[nodemon] app crashed - waiting for file c>

.service

[Unit]
Description=My Eclipse Application

[Service]
ExecStart=/usr/bin/npm start
WorkingDirectory=/var/www/projects/eclipse
Restart=always

[Install]
WantedBy=multi-user.target

Node.js v20.12.2.
nodemon -v3.1.0
nvm -v0.39.7

I’ve tried to update nvm, nodemon, node. Run it only like nvm start from the app folder.