TypeError: Cannot read property 'hasAttribute' of null
   at createLoginWidget (/usr/lib/cm4all/node_modules/cm4all-user-management/2.3.17/dist/lib.js/user-management/private/login-service.js:22:37)
   at filter (/usr/lib/cm4all/node_modules/cm4all-user-management/2.3.17/dist/lib.js/user-management/private/login-service.js:124:20)
   at Layer.handle [as handle_request] (/usr/lib/cm4all/node_modules/express/4.18.2/lib/router/layer.js:95:5)
   at next (/usr/lib/cm4all/node_modules/express/4.18.2/lib/router/route.js:144:13)
   at Route.dispatch (/usr/lib/cm4all/node_modules/express/4.18.2/lib/router/route.js:114:3)
   at Layer.handle [as handle_request] (/usr/lib/cm4all/node_modules/express/4.18.2/lib/router/layer.js:95:5)
   at /usr/lib/cm4all/node_modules/express/4.18.2/lib/router/index.js:284:15
   at Function.process_params (/usr/lib/cm4all/node_modules/express/4.18.2/lib/router/index.js:346:12)
   at next (/usr/lib/cm4all/node_modules/express/4.18.2/lib/router/index.js:280:10)
   at /usr/lib/cm4all/node_modules/body-parser/1.20.2/lib/read.js:137:5