Visitors who are not logged in see “You must login to post.” on the add listing page. Change it with the Login Message option of the GD > Add Listing block, or the login_msg attribute of the shortcode:

[gd_add_listing post_type="gd_place" show_login="1" login_msg="Please register or log in to add your business."]

1. Go to GeoDirectory > Settings > General > Pages and note which page is your Add listing page.
2. Edit that page and open the GD > Add Listing block (or edit the shortcode).
3. Enter your text in Login Message and keep Show the login and register links if required ticked.
4. Update the page.

With the links option on, Login and Register buttons appear under the message, so visitors do not need a separate link to your login page. The Register button only shows when Anyone can register is ticked at Settings > General in WordPress. If people cannot sign up, see Why can my users not register?.

If the old message still shows next to your new one, the page has two add listing elements, for example a block and a shortcode. Remove one.

To let visitors post without an account, turn on Allow posting without logging in? at GeoDirectory > Settings > General (click Show Advanced to see it). The message is then not shown at all. See GD > Add Listing for the other options.