Background of the issue:
I downloaded the Whols plugin in the backend of the site, set the default registration page, and searched for the strings related to the registration form in the string translation. I have translated them.
Symptoms:
When I switch to another language like Spanish, the registration form in the original page is missing, and I can only see the registration form in the default English state.
Questions:
How can I solve the problem that the registration form is not displayed in other languages?