Hi John,
Thanks for writing in! I have tried to login into your site, but it seems that your login information provided are incorrect.
ERROR: The password you entered for the email address is incorrect.
Then I have watched both of your videos. Session expire usually happens if you’re using an older version of WordPress core or if your WordPress is corrupted. Please check the current version of your WordPress running on your server and update if necessary (https://codex.wordpress.org/Upgrading_WordPress). If you’re already using the latest version of WordPress, try re-installing it again so that it will fix any corrupted or missing files.
1.Try disabling your 3rd party plugins (except Cornerstone plugin) and see if you’re encountering a plugin conflict. If the issue resolved, then you can activate your plugins one by one to see which plugin causing this issue.
2.Since you’re using a child theme, you need to disable your child theme temporarily and activate your parent X theme by head over to Appearance -> Themes section. If the problem resolved when testing, then you need to check your child theme customizations to isolate the issue.
3.You can also activate WP_DEBUG mode on WordPress to see if you’re getting any PHP errors. To do that, please follow this guide (https://codex.wordpress.org/WP_DEBUG) and enable WP_DEBUG mode first. Then when you re-visit your site, you should see any error messages that describes the issue.
Please make sure to clear all caches when testing your issue (https://www.wpbeginner.com/beginners-guide/how-to-clear-your-cache-in-wordpress/).
If you’re still having issues, please update your correct login information in the secure note to check your issue further.
Let us know how it goes.
Thanks!