Hi @tenthirtyfive
In your FTP root, you should find a file named “wp-config.php” – you can add that line in that file. Set it to:
define( 'WP_MEMORY_LIMIT', '256M' );
If you still aren’t sure – your host should be able to do this for you.
Thanks for the heads up @OctoKom – have edited his posts.
– Ed