try ws 4.1.0 to see where it breaks

Author: Apollon77

package.json

@@ -39,7 +39,7 @@
     "mkdirp": "^0.5.1",
     "node-forge": "^0.10.0",
     "semaphore": "^1.1.0",
-    "ws": "^5.2.3",
+    "ws": "^4.1.0",
     "yargs": "^16.1.0"
   }
 }