Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
Please get in touch with your host and ask them to whitelist the IP 193.138.6.5 and the user-agent RankMathApi/2.0.2; https://rankmath.com and see if that works for you.
For more details on this issue, please check this URL: https://rankmath.com/kb/api-http-400-error/
Let us know how it goes. Looking forward to helping you.
Thank 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.
