If you or your visitors see a wp-admin white page over their WordPress site, there are plenty of reasons associated with the issue. Usually, the problem arises due to errors in the latest default theme. In such a case, temporarily switching back to the original theme might be a better option. Another reason for such an issue might be a corrupt plugin folder or WordPress site's files. To resolve this issue, reinstalling fresh copies with the help FTP client or file manager can be helpful.