Hello,
Thank you for contacting the support and sorry for any inconvenience that might have been caused due to that.
I can see the multiple <title> & </head> tags inside the page source of the URL you mentioned. Could you please check, if your theme is outputting the title tag for your website?
Assuming you are using the latest version of all the plugins and the themes (please update if not yet), it would seem like a conflict with one of the plugins or the theme you are using.
To determine that, please follow this troubleshooting guide:
https://rankmath.com/kb/check-plugin-conflicts/
Only the site admin would know and your users won’t be affected by this troubleshooting.
If the issue persists, please record a video screencast using a tool like Loom showing the troubleshooting and edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
Please do take a complete backup of your website before sharing the information with us.
We really look forward to helping you.
Thanks!
I found the issue by inspecting my pages. The problem was a verification tag in the header, which also had the tag ‘title’. Now I removed it, everything works fine again.
Cheers,
Esther
Hello,
Thank you for the update.
We are glad that you already found a fix for this issue.
If you have any other concerns, please don’t hesitate to contact us anytime by creating a new ticket to assist you further with anything else.
Thank you.