Contents are locked because robots.txt file is present in the root folder.

Hello,

Thank you for contacting the support, and sorry for any inconvenience that might have been caused due to that.

Try to delete the physical robots.txt file inside the root directory of your WordPress installation with the help of the FTP client or your native web hosting file manager.

Looking forward to helping you. Thank you.

Hello,

Thanks for your reply.

Rank Math generates a virtual robots.txt file and this file is editable only if there is no physical robots.txt file present on the root folder of your server.

We’re glad that the issue is resolved now, please let us know if you need any further assistance, it would be our pleasure to assist you.

Thank you.