Good, this is normal to happen when you switch domains. This is not a uCoz issue. If you have attached your domain to the Google Search Console, you can check if there are any strikes on your websites. Alternatively, you can contact Google in regards of your issue.
hey i'm joe, please don't call me on my real name because you're gonna misspell or mispronounce it and it drives me nuts
i do not work for the company anymore, sorry for the late replies