GPT -4 doesn't work and All the data has gone

Hi
My first topic ever.
What’s going on? I can’t use my account to access Chatgpt and also it seems to need me to update, but i did. Apart from that, all my data lost in my paid account.

Does anyone help me how to let it serve right?
Do you want to let me use this service for free if it doesn’t work when I paid it already?
It already slows down my work.

I hope you receive the support you need. If you do, please visit help.openai.com for assistance.

clear cookies, start new session and you should be back to default CHATGPT4 mode

Apparently, there is a bug,; if you as PRO subscriber are curious and choose the ChatGPT alpha mode you are stuck there