Two errors breaking plugin

Error in admin panel shipping tab;

Warning: Invalid argument supplied for foreach() in /wp-content/plugins/merchant-xml-feed-generator/gmpf-shipping.php on line 71

Error in feed;

<b>Warning</b>
: in_array() expects parameter 2 to be array, boolean given in
<b>
/wp-content/plugins/merchant-xml-feed-generator/gmpf-generator.php
</b>
on line
<b>192</b>

https://wordpress.org/plugins/merchant-xml-feed-generator/