Tribe__Tickets_Plus__Commerce__EDD__Main::pre_checkout_errors()
Inspects the cart in order to catch out-of-stock issues etc and display them to the customer before they go on to complete their personal and payment details, etc.
If this is undesirable or different formatting etc is needed
Source
File: src/Tribe/Commerce/EDD/Main.php
public function pre_checkout_errors() {
ob_start();
$this->checkout_errors();
edd_print_errors();
echo apply_filters( 'eddtickets_pre_checkout_errors', ob_get_clean() );
}