URIError: Failed to decode param '/lokal/sta%DFfurt/fischsterben-das-ammoniak-problem-von-stassfurt'
   at decodeURIComponent (<anonymous>)
   at decode_param (/app/node_modules/express/lib/router/layer.js:172:12)
   at Layer.match (/app/node_modules/express/lib/router/layer.js:123:27)
   at matchLayer (/app/node_modules/express/lib/router/index.js:585:18)
   at next (/app/node_modules/express/lib/router/index.js:226:15)
   at Function.handle (/app/node_modules/express/lib/router/index.js:175:3)
   at router (/app/node_modules/express/lib/router/index.js:47:12)
   at Layer.handle [as handle_request] (/app/node_modules/express/lib/router/layer.js:95:5)
   at trim_prefix (/app/node_modules/express/lib/router/index.js:328:13)
   at /app/node_modules/express/lib/router/index.js:286:9