Web Wallet - Error Mixed Case


I created a web wallet and transferred some DERO to it last year. Since the mainnet upgrade I can no longer transfer DERO to or from my web wallet. I noticed the error when attempting to mine it says:

"wallet address is invalid. {“error”: “mixed case”}

I’ve tried rescanning my wallet and converting the address to lower case but i can’t send or recieve from my web wallet anymore? Any ideas how to fix this. Does anyone know if this is a known bug or issue??? Thanks in advance for any advise.

Pls use valid address of Atlantis on web wallet. New Stargate address will not work on web wallet.
Stargate has no gui/webwallet as of now. It will come soon.