Roy Ho

If you look in your theme’s css you will see this rule:

.right-sidebar #content { margin: 20px 0 0 -10px; }

That -10px is what is causing your content to spill out of the left side. You can try setting that to 20px or so but beware, this may have negative affect on the rest of your site that relies on that style.

Exactly what the error says…Your code should more like this:

add_action( 'password_reset', 'my_password_reset', 10, 2 );

function my_password_reset( $user, $new_password ) {
  // do stuff
}

As suggested on your other question, switch to 2012 theme and turn off all other plugins except WC and see if it works.

White screen usually indicates a PHP error. You should check your PHP error log to see what you find.

While Paypal does have that capability, you have to check if the Paypal payment module that comes default with WC will allow that or even if you purchase a separate module, you need to check if this function is there.

For more information on this you can refer to -> https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/howto_admin_authcapture

What editor are you using? POeditor? And if so, did you make sure to put in the right gettext function? In this case _x?

Not in particular no but then your ecommerce side of things will not adhere to the style of your theme and will look much different and not to mention you may encounter layout issues.

But if you must use a theme that is not made for WC, then I would suggest you start with 2012 theme as it is probably the most compatible with that in terms of layouts.