The websites https://www.sec-box.jp/ and https://www.kurashi.best/ are displaying a blank white screen and are not loading properly. I manage 10 websites in total, all under the same account, and the other websites are functioning normally. However, these two sites are the only ones experiencing this issue.
It seems to be an issue occurring simultaneously across Wix sites globally. 
For reference, the site I own is experiencing the same issue. I believe Wix is already aware of this problem and is likely working on a solution. At this point, all we can do is wait for a prompt resolution. 