It is so sad such an experience. This is unfortunate your account was closed without your prior notice. Most times, such act might be as a result of suspicious activity on that account or maybe an attempt to login from another up different from the regularly used one and when it is noticed, such account is assumed to be under cyber attack from hackers which resulted to immediate action. Although you did not state how long this has happened and how long you took your break from gambling on the duckdice site. Like the other commenter said, you should look for their representative here on this platform and  pm  him or her as to ascertain the issues behind your account closure. I think this might just help because this platform has a good reputation in handling such situations if only you are on the right track and free of any allegations.