Umbrel Deposit field address empty, Withdraw also not possible

The node does not provide an deposit address anymore. It worked in the past and I have sent and withdrawn SATs. Now the address remains empty. Also withdrawing does not work anymore, the node indicates ’ Please validate the Bitcoin address is correct’ eventhough the address has worked before.
A couple of days ago Umbrel was upgraded to 0.4.14. First I thought that caused the issues and I have rolled it back to an older version. But that did not resolve the issues.
Unfortunately these tips did not help as well: BTC/Lightning Addresses BLANK?
Help is much appreciated, many thanks JW