Kostal Plenticore - Solar Inverter is offline in Home Assistant since change of login data of the inverter

Third party integrations
1

Dear community,
I changed the login password for my solar inverter (Kostal Plenticore G2). Since then, the entities which are provided by the Kostal Integration are no more accessible in Home Assistant.
Does anybody know how to fix this?

2

OK, deleted the integration und re-installed it again. Worked and seems the only way to fix it.