specified it to run 8080 on wsgi.py file

app.py

@@ -86,3 +86,5 @@ def download_assessment(filename):
         app.logger.exception(f"Error serving assessment file: {str(e)}")
         abort(500) 
 
+if __name__ == '__main__':
+    app.run(debug=True, port=int(os.environ.get('PORT', 5000)))
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