Attempt to query on error condition and print trace (#1131)

app/routes.py

@@ -610,6 +610,15 @@ def internal_error(e):
     else:
         query = request.args.get('q')
 
+    # Attempt to parse the query
+    try:
+        search_util = Search(request, g.user_config, g.session_key)
+        query = search_util.new_search_query()
+    except Exception:
+        pass
+
+    print(traceback.format_exc(), file=sys.stderr)
+
     localization_lang = g.user_config.get_localization_lang()
     translation = app.config['TRANSLATIONS'][localization_lang]
     return render_template(