and what version of wppizza and the preorder and gateway do you have installed ?

anything in your debug.log ?
how exactly do you mean “no longer available” ?
is there no link on the left hand side to it, or is it just a blank page or what exactly ?
perhaps you can post a screenshot too…..

actually , looking at your site , you are not using wppizza 3.12.1 , but 3.7.1 ,
if you have enabled “Order Sorting:” in the plugin , then that may well be the issue (i’ll have to add a note to th eplugin that this will only work from version xyz onwards)
let me know if switching that option off will let you view the order history again

>I disabled the Precommand plugin and the order history returned.
sure, because it requires 3.8 – at a minimum

>I didn’t check “Order Sorting:” in the plugin.
that doesnt matter actually. it needs the wppizza orders meta table – which only exists since 3.8 – to work

>If I install version 3.8 of wppizza, would I have other problems related to the plugin this new?
I cannot tell you, it all depends on what else you have running (wppizza or otherwsie) , but it’s immaterial as 3.8 does not exist for download .

the most recent version as of writing this is wppizza 3.12.2, so you would be advised to update anyway.
However , if you have customised things somewhere i cannot know what effect this might have – depends all onhow you customised things, so if you update from such an old version of wppizza to the most recent one, i would strongly suggest you make a full backup of your site first.

alternatively, you could *try* the following (which may or may not work, but perhaps worth a try)
assuming that you have perhaps access to your database in some way (and know what you are doing) you could create the meta table manually like so :

CREATE TABLE '{prefix}_wppizza_orders_meta' (
'meta_id' BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
'order_id' INT(10) NOT NULL DEFAULT '0',
'meta_key' VARCHAR(190) NULL DEFAULT NULL COLLATE 'utf8mb4_unicode_ci',
'meta_value' LONGTEXT NULL COLLATE 'utf8mb4_unicode_ci',
PRIMARY KEY ('meta_id'),
INDEX 'order_id' ('order_id'),
INDEX 'meta_key' ('meta_key')
);

REPLACING the {prefix} here with your WP table prefix that is being in use on your site
doing that might even make this all work with wppizza version < 3.8 (but not tested)