New PC wallet installed, no wallet address + free ban for asking help on Telegram

Hi there.
Today I’ve installed the LTC wallet on my win10 pc. Everything synced. When I click on the receiving address I don’t see any address. No button to create 1 also.
Through the console menu, I’ve made a new address with the command getnewaddress. When I use the generated address on the exchange to withdraw my LTC’s its says invalid.

Help needed, what to do next?

I’ve posted this single message also on the Telegram group. Later I noticed that I got banned. Like really, is this a joke? Lmao.