Error Ethereum Wallet Update rinkeby Testnet

[Casatokuser]

Hi,

I updatet my Ethereum Wallet short time ago.
Yesterday I wanted to change to the rinkeby testnet.
An error appeared and now I am not longer able to get access to my Ethereum Wallet.

This message appears:

No connection to software node possible.
Further information in the Log data.

Node type: geth
Network: rinkeby
Platform: win32 (Architecture x64)

...flag provided but not defined: -rinkeby


Any ideas?