I am having the same issue, but since I can’t log in to wp-admin, I can’t change my theme. This is my first WP publishing attempt. I used CyberDuck to transfer my files from localhost to host, and now when I try to login to mysite/wp-admin, I get this error:
Fatal error: Call to undefined function wp_is_mobile() in /home/glenn235/public_html/wp-admin/index.php on line 24
I don’t know how to fix this, and can’t log in. Also, I am not sure how to post my own thread/issue in this forum. This was the closest match I could find to my issue.
