Anonymous Login does not return results

[EvilEls]

Login with credentials is working.

Checking Anonymous

setting NO class name

webuntis.0 | 2023-08-31 16:34:39.838 | info | Got terminate signal TERMINATE_YOURSELF
webuntis.0 | 2023-08-31 16:34:15.680 | error | No class set
webuntis.0 | 2023-08-31 16:34:14.957 | info | starting. Version 0.3.4 in /opt/iobroker/node_modules/iobroker.webuntis, node: v18.17.1, js-controller: 5.0.12

setting A WRONG class name

webuntis.0 | 2023-08-31 16:34:10.484 | info | Got terminate signal TERMINATE_YOURSELF
webuntis.0 | 2023-08-31 16:33:06.095 | error | Class not found
webuntis.0 | 2023-08-31 16:33:06.069 | info | starting. Version 0.3.4 in /opt/iobroker/node_modules/iobroker.webuntis, node: v18.17.1, js-controller: 5.0.12

setting CORRECT class name

webuntis.0 | 2023-08-31 16:35:24.193 | warn | Terminated (UNCAUGHT_EXCEPTION): Without reason
webuntis.0 | 2023-08-31 16:35:24.192 | info | terminating
webuntis.0 | 2023-08-31 16:35:24.188 | error | Server didn't return any result.
webuntis.0 | 2023-08-31 16:35:24.187 | error | Error: Server didn't return any result.     at WebUntisAnonymousAuth._request (/opt/iobroker/node_modules/webuntis/index.js:745:42)     at process.processTicksAndRejections (node:internal/process/task_queues:95:5)     at async WebUntisAnonymousAuth.getTimetableFor (/opt/iobroker/node_modules/webuntis/index.js:370:16)
webuntis.0 | 2023-08-31 16:35:24.184 | error | unhandled promise rejection: Server didn't return any result.
webuntis.0 | 2023-08-31 16:35:24.182 | error | Unhandled  promise rejection. This error originated either by throwing inside of  an async function without a catch block, or by rejecting a promise which  was not handled with .catch().
webuntis.0 | 2023-08-31 16:35:22.746 | info | starting. Version 0.3.4 in /opt/iobroker/node_modules/iobroker.webuntis, node: v18.17.1, js-controller: 5.0.12