Error: watch failed: watcher error + empty page

Since last week I’m getting the following error when I do “ionic serve”:

watch failed: watcher error:
/…/src/assets//*,/…/src/index.html,/…/src/manifest.json,/…/src/service-worker.js,/…/node_modules/ionicons/dist/fonts//,/…/node_modules/ionic-angular/fonts/**/,/…/node_modules/ionic-angular/polyfills/polyfills.js,/…/node_modules/sw-toolbox/sw-toolbox.js:
Error: watch /…/node_modules/ionicons/dist/fonts ENOSPC

But on the last days the app still works with “ionic serve”, but the live reload didn’t work. That’s why I have deleted the node_modules folder and used “npm install” again. But now the watch failed error is still there and on top of that I get only an empty page when I run “ionic serve”. Here is my package.json:

{
  "name": "ionic-hello-world",
  "author": "Ionic Framework",
  "homepage": "http://ionicframework.com/",
  "private": true,
  "scripts": {
    "clean": "ionic-app-scripts clean",
    "build": "ionic-app-scripts build",
    "ionic:build": "ionic-app-scripts build",
    "ionic:serve": "ionic-app-scripts serve"
  },
  "dependencies": {
    "@angular/common": "2.4.8",
    "@angular/compiler": "2.4.8",
    "@angular/compiler-cli": "2.4.8",
    "@angular/core": "2.4.8",
    "@angular/forms": "2.4.8",
    "@angular/http": "2.4.8",
    "@angular/platform-browser": "2.4.8",
    "@angular/platform-browser-dynamic": "2.4.8",
    "@angular/platform-server": "2.4.8",
    "@ionic/cloud-angular": "^0.11.0",
    "@ionic/storage": "2.0.0",
    "@ngx-translate/core": "^6.0.0",
    "@ngx-translate/http-loader": "0.0.3",
    "ionic-angular": "2.2.0",
    "ionic-native": "2.4.1",
    "ionicons": "3.0.0",
    "rxjs": "5.0.1",
    "sw-toolbox": "3.4.0",
    "zone.js": "0.7.2"
  },
  "devDependencies": {
    "@ionic/app-scripts": "1.1.4",
    "typescript": "2.0.9"
  },
  "cordovaPlugins": [
    "cordova-plugin-whitelist",
    "cordova-plugin-console",
    "cordova-plugin-statusbar",
    "cordova-plugin-device",
    "cordova-plugin-splashscreen",
    "ionic-plugin-keyboard"
  ],
  "cordovaPlatforms": [],
  "description": "kioskapp: An Ionic project"
}

Someone know how I can fix that?

EDIT: The watch failed error appears even when I start a new project and then run “ionic serve”. My operating system is Arch Linux.