The error you are getting is due to the next export command. The next…

… export command does not work with the App Router. If you are using the App Router in your Next.js project, you will need to disable it before running the next export command.

next.config.js

@@ -1,4 +1,11 @@
 /** @type {import('next').NextConfig} */
-const nextConfig = {}
 
-module.exports = nextConfig
+const nextConfig = {
+  experimental: {
+    images: false,
+  },
+  output: "export",
+  router: false,
+};
+
+module.exports = nextConfig;