Excuse me, what is the reason why the web page appears garbled?

Probably because the network is not good, the data is not transferred, then run.
can also be a problem with a small configuration in the computer, or it can be a change in the original Settings while the program is running.
Check whether the software in your computer has malicious software, or Trojan horse virus
may also be the browser problem, change the browser
may also be the website server temporarily unable to service

Maybe I just caught someone updating the code

The network may be unstable, the data is not loaded, and the error page is displayed.