update deleted my liscense

1. I have been successfully using minecraft for years, after having bought is so long ago that I can't pinpoint a date. Definitely prior to being sold to Microsoft. This latest version wiped out access to my saved game, and insists that I must purchase it. This, as stated, I have already done. My order reference is #7824d518b750487c8adaf626e4090d2b. My original account information was under email "kcorl001@att.net" - an account that I have not had for decades, but could find no method to update. My current email is kenneth.corley@outlook.com. Although I do not play all that frequently, I am not willing to lose access to my worlds. However, I am completely unwilling to buy another copy just to regain access.
2. What have you done to me?