Changed the app port to listen on port 7860.

Dockerfile

@@ -14,7 +14,7 @@ RUN npm install
 COPY . .
 
 # Expose the port that the app runs on
-EXPOSE 3000
+EXPOSE 7860
 
 # Define the command to run the application
 CMD ["node", "server.js"]

server.js

@@ -2,7 +2,7 @@ const express = require("express");
 const path = require("path");
 const axios = require("axios");
 const app = express();
-const port = process.env.PORT || 3000;
+const port = process.env.PORT || 7860;
 
 // Serve static files from the current directory
 app.use(express.static(__dirname));