Well I just realized there was a incompatibility with the plugin:
http://wpscoop.com/wp-inject/
I just uninstall wp inject and the problem was fixed.
Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
Thank you for letting us know, we will check it but you should also notify the other plugin developer so both of us can check it and try to solve that incompatibility. Are there any other questions you might have?
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.
