Careful where you are placing your brackets.
The hook should look like;
add_action('profile_update', array( $this, 'user_profile_update' ), 10, 2 );
Note the close bracket after the method name
Careful where you are placing your brackets.
The hook should look like;
add_action('profile_update', array( $this, 'user_profile_update' ), 10, 2 );
Note the close bracket after the method name