if you get an internal server error you CLEARLY got some error somewhere.
enable debug , it might help you
(my guess is you have a rogue space somewhere or a closing bracket too many/ too few)

sounds more like a coding error your end to be honest.
i am using that exact same code here and it works just fine

you need to find out what your internal error is

as you noticed, the prices fields only accept prices.

however, as of v2.11.8.6 (should be available in a couple of days or so) you will be able to add this to your themes functions.php

add_filter('wppizza_filter_output_format_price','my_function');
function my_function($priceformatted){
	/*get rid of any formatting first and cast to  integer*/
	$price=(int)str_replace(array(',','.'),'',$priceformatted);
	/*if zero, display some text instead*/
	if($price==0){
		$priceformatted='some text';/*set this to whatever text you need to be displayed*/
	}
	
	return $priceformatted;	
}

note: this is only advisable like this if you do not offer any actual ordering – as you said you don’t – and it applies to *all* menu items with a price of zero – though you could set the one it applies to to an impossibly high price (let’s say 99999.00) and do if($price==9999900){ etc. otherwise you’ll have to jump through some more hoops

hope that helps

as of 2.11.8.5

>Have a setting to allow the mini-cart to be either displayed on top or bottom

sorry, i just hate it at the bottom.
however, you can set/add a padding to the top of your body (in wppizza->layout->minicart) if it’s displayed so your navigation should move accordingly – if you really want it at the bottom, you could change the css to be top:initial, bottom:20px (or something similar)

>Have a button on there to ‘View Cart’
now optionally enabalable (is that a word ?)

for anybody reading this, please add your comments here

https://support.wp-pizza.com/topic/autoprint-sms-gprs-fax-orders/

should be (reasonably) simple:
add your spaghetti, linguine, ziti and chicken to the list of ingredients for that collection of meal sizes and set the pasta types to be 0.00 and the chicken to be 3.00

add a couple of custom groups (one for the pasta types one for the chicken) as follows:

set/add a pasta types custom group to be a group type of “one only” (radio input) as – presumably – you can only select one of those, add the pasta choices there, and assign to your pasta items

use the second group to include the chicken choice – (set group type as appropriate) and also add/assign that to the relevant menu items…

does that help?

click on the links i posted above!!

hmm, any particular reason why you are asking me the same question 3 times ?
i already replied to you yesterday as follows:

you need a net/gprs/cloudprint enabled printer.
please have a look around the forum, there already are lots and lots of topics regarding this

and also, regarding coding this:

you want to have a look here
https://support.wp-pizza.com/forum/code-snippets/
and probably here
https://support.wp-pizza.com/topic/after-every-order/

>That’s not me loading the insecure content that is the theme setting
i’m aware of that

> timezone didn’t realise you have to set it in another location
most of the time it’s fine without setting it and wordpress uses its own internal calculation.
however, wordpress transients (that’s what the preorder thing uses to cache things) depend on that setting . if you just want something to expire in 4 hours , its fine either way, but if you calculate expiry time to be at 5PM for example from now , it goes awol (as 5PM server time !=5PM wordpress time if the 2 aren’t the same)