Home-Assistant-Matter Hub - Fehlermeldung

Hallo zusammen,

ich bekommen beim einrichten einer neuen Bridge im Matter Hub folgende Fehlermeldung:

Unexpected token ‘<’, "<!DOCTYPE "… is not valid JSON

Im Protokoll des Home-Assistant-Matter-Hub ist folgendes aufgeführt:

s6-rc: info: service s6rc-oneshot-runner: starting
s6-rc: info: service s6rc-oneshot-runner successfully started
s6-rc: info: service base-addon-banner: starting
-----------------------------------------------------------
 Add-on: Home-Assistant-Matter-Hub
 Publish your entities from Home Assistant to any Matter-compatible controller like Alexa, Apple Home or Google Home.
-----------------------------------------------------------
 Add-on version: 3.0.0-alpha.81
 You are running the latest version of this add-on.
 System: Home Assistant OS 15.1  (amd64 / qemux86-64)
 Home Assistant Core: 2025.4.0
 Home Assistant Supervisor: 2025.03.4
-----------------------------------------------------------
 Please, share the above information when looking for help
 or support in, e.g., GitHub, forums or the Discord chat.
-----------------------------------------------------------
s6-rc: info: service base-addon-banner successfully started
s6-rc: info: service fix-attrs: starting
s6-rc: info: service base-addon-log-level: starting
s6-rc: info: service fix-attrs successfully started
s6-rc: info: service base-addon-log-level successfully started
s6-rc: info: service legacy-cont-init: starting
s6-rc: info: service legacy-cont-init successfully started
s6-rc: info: service legacy-services: starting
s6-rc: info: service legacy-services successfully started
2025-04-07 13:15:38.110 INFO   WebApi               HTTP server (API & Web App) listening on port 62694
2025-04-07 13:15:38.128 INFO   HomeAssistantClient  Waiting for Home Assistant to be up and running
2025-04-07 13:18:02.969 INFO   ServerNodeStore      Opened 94f2f2af7d854e1d8d80f18aaed24207 storage at /config/data/94f2f2af7d854e1d8d80f18aaed24207
2025-04-07 13:18:03.107 INFO   BaseEventStore       Initialized new volatile event store
2025-04-07 13:18:03.120 ERROR  Transaction          Rolling back initialize<94f2f2af7d854e1d8d80f18aaed24207>#1 due to error: Behaviors have errors
AggregateError: Behaviors have errors
    at file:///usr/local/lib/node_modules/home-assistant-matter-hub/node_modules/@matter/node/dist/esm/endpoint/properties/Behaviors.js:126:21
    at all (file:///usr/local/lib/node_modules/home-assistant-matter-hub/node_modules/@matter/general/dist/esm/util/Construction.js:380:17)
    at file:///usr/local/lib/node_modules/home-assistant-matter-hub/node_modules/@matter/general/dist/esm/util/Construction.js:370:11
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async BridgeServerNode.initialize (file:///usr/local/lib/node_modules/home-assistant-matter-hub/node_modules/@matter/node/dist/esm/node/ServerNode.js:98:5)

Wäre super wenn mich hier jemand supporten könnte.

Danke und beste Grüße