Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
Please install the plugin on the below link by either extracting it and uploading to your wp-content/plugins folder or you can install it by heading over to Dashboard > Plugins > Add new and upload it.
https://s.rankmath.com/downloadapifiles
I hope this info helps. 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.
