I recently volunteered to help my local fitness center admin their WordPress.org site. Someone reported that they were getting a 404 Error "Requested URL not found on this server" when trying to access the website. I looked online, and saw that a possible solution was to change the URL of the website from HTTP to HTTPS. I did so, and now I can no longer log into the wp-login.php portal. I continuously get the error in the attached image.
Is there any way to solve this?
I apologize, but I do not have access the the server itself that the site is being run on...I have been helping them through the admin portion of the website itself, e.g. uploading new photos, new events, etc. I have never used WordPress.org through a server before, I apologize for my lack of knowledge on the subject. Any help would be greatly appreciated.