I need to update my site from version 3.1.2 to version 5.1.45. Since there is no update indicated in the automatic updates I attempted via SFTP and it broke the site. Debug shows:
Deprecated: Unparenthesized a ? b : c ? d : e
is deprecated. Use either (a ? b : c) ? d : e
or a ? b : (c ? d : e)
in /www/wp-content/themes/pro/cornerstone/includes/classes/elements/class-element-front-end.php on line 112
How do I go about updating from the old version? I appreciate the help.