I encountered this error when I try the save button : Failed to send request: "https://www.yourdomainname.com/wp-admin/admin-ajax.php?action=np_save_page" HTTP status - 403. Error - Failed to send a...

even though this video is not current https://nicepage.com/doc/article/4348?uid=ee0592d4-eeb4-43f9-94b0-87e3ec21a515 I did it step by step and I can not import content from template. see attached...