Hello,
Thanks for contacting us and we regret the inconvenience caused.
Could you please share some screenshots or a screencast of the issue in the sensitive data section of this ticket, as it will help us understand the insights of the issue? You can access the sensitive data section by editing your first post on this ticket.
You may use a tool like imgur.com to share the screenshots link or loom to record and share the link of the screencast.
Looking forward to helping you.
Thanks.
Hello,
I have updated the sensitive data as requested. Can you please check further?
Thank you.
Hello,
Thank you for the follow-up.
Could you please confirm if you have already contacted your web host based on the screenshot to check the PHP values or any firewall/ModSecurity that might be causing this issue?
If so, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.

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/
Thank you, and we really look forward to helping you.
Good Day
Thank you for the reply. I have already tries teh plugin on a website without Rankmath and it works perfectly. I have contacted all of the possible people to including host and server managers.
Everything’s up to date I assure you. The other server error is below
PHP Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/feed-them-gallery/includes/display-gallery/display-gallery-class.php:1006) in /wp-includes/rest-api/class-wp-rest-server.php on line 1642
PHP Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/feed-them-gallery/includes/display-gallery/display-gallery-class.php:1006) in /wp-includes/rest-api.php on line 675
PHP Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/feed-them-gallery/includes/display-gallery/display-gallery-class.php:1006) in /wp-includes/rest-api.php on line 676
PHP Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/feed-them-gallery/includes/display-gallery/display-gallery-class.php:1006) in /wp-includes/rest-api.php on line 677
PHP Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/feed-them-gallery/includes/display-gallery/display-gallery-class.php:1006) in /wp-includes/rest-api.php on line 678
Hello,
Thanks for getting back to us.
Please share your WordPress login and FTP details so we can investigate further into the issue.
We really look forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.