Ok, so we figured it. If you are using g suite – it requires SMTP plugin. We used the free one called WP MAIL SMTP and then contacted g suite support to configure it but this article gives a good answer to it as well: https://www.siteground.com/tutorials/wordpress/use-smtp/
That should not effect wp-admin, I have never seen that happen before. Are you sure both your site url and homepage url’s are set to https:// If you really want to change them to see if that is the issue, you could edit them in the following files: (there are multiple mentions of that url … Read more
admin-ajax and external service interaction
Regular users logs in as ADMIN if Admin logged in recently
You could rename the plugins folder (in wp-content), but since you have no FTP access, that is harder. If you have File Manager access via your hosting cPanel, use that to rename the folder. But no bypass of a login via a GET/POST – that would be a serious security problem. Most likely, a plugin … Read more
Edit “Not Available” Page
First, Renamed the plugins folder to plugins_old. Second, Replaced the copies of everything except the wp-config.php file and the /wp-content/ directory with fresh copies from the download. This will effectively replace all of your core files without damaging your content and settings. I hope this will solve the problem.
Try updating your WordPress Manually if you are not on the current version: https://wordpress.org/support/article/updating-wordpress/ If you are on the correct version I suggest slowly deleting your most recently installed plugins. If you do not remember, I suggest slowly deleting them one by one and checking to see if you can then login. NOTE You do … Read more
Almost everything is okay after follow this step by step. If you are changing the URL of your website at the same time as moving servers, you might need to do some additional MySQL work. For example, if you’re changing from domain-one.com to domain-two.com, you’ll need to change the siteurl and home options in the … Read more
Just use $_SERVER[‘REQUEST_URI’]; instead of home_url(add_query_arg(array(), $wp->request));