"Your balance is insufficient" - NO, it isn't

Hi there,
I installed Incognito Wallet for Android yesterday and transferred a small BTC amount from a 3rd party wallet. It has arrived - the credit is listed under wallet -> pBTC.
However, if I want to transfer or exchange it further, I always get the error message “Your balance is insufficient”, no matter how small the amount.
So I can no longer use my money and I urgently hope for help.
I took some screenshots but I don’t know how to upload them here.

greetings
jotrocken

4 posts were merged into an existing topic: How do I transfer from Account0 to PDex after the app upgrade?