Mods: please move this question to Meta.

I just logged on from a new system and my reputation is down to 1 (used to be over 5k). What is going on?

Edit I: After posting I also note that a different user name is showing up associated with this question.

Edit II: my profile is completely clean, it seems a fresh new account was associated with my email address.

Edit III: my old profile still exists. However, every time I log on I end up in this new account.

Edit IV: The problem has been solved. When I log on I am now directed to the original account.