Ultra low level error in Sohu registration process

For the website, there are bugs is inevitable, but in any case some bugs should not appear:

Bugs that greatly affect the user experience;

The BUG that the main process and function service cannot go through or use normally;

Bugs that greatly affect the KPI data of the website;

Low-level retarded BUG.

The Japanese have recently discovered an intolerable BUG that combines all four of these characteristics. What is even more astonishing is that this happened during the registration process on the SOHU website. Without further ado, look at the following picture: