MySQL Error After WordPress Update

Hello,

i updated WordPress to the latest version yesterday and began receiving the following error:

Warning: mysqli_escape_string() expects exactly 2 parameters, 1 given in /srv/users/serverpilot/apps/lavasea/public/wp-content/themes/Newsmag/functions.php on line 3

A few weeks ago, I had to add the code:

function mysql_escape_string($string){return mysqli_escape_string($string);}

to my theme because the entire site was down. I searched for a solution, and found that line of code, and it worked until yesterday.

I do not know much about PHP or MySQL. The theme is the current version, running 3.3.1 and WP version 4.7.3. I run three sites with this theme and this is the only one that has this error after the update.

Thanks
Daniel

• This topic was modified 9 years by shorebeat.

Copy of my functions.php file: http://pastebin.com/wn9KYYJm

• This reply was modified 9 years by shorebeat.
• This reply was modified 9 years by shorebeat.

Also, if I remove

function mysql_escape_string($string){return mysqli_escape_string($string);}

my entire site goes down.