TypeError in class-castos-blocks.php

Hi,

We’ve encountered a TypeError in php/classes/integrations/block/class-castos-blocks.php line 360 when calling ssp_get_podcasts();

array_map(): Argument #2 ($array) must be of type array, WP_Error given

On further investigation when examining ssp_get_podcasts() we noticed the following:

return get_terms('series', array( 'hide_empty' => $hide_empty ));

Where the taxonomy key is hard coded as series

While this seems to work most of the time, if you override the taxonomy using the `ssp_series_taxonomy’ filter to update the “series” key it will produce an error anywhere where you’ve hardcoded the value like in ssp_get_podcasts(). Seems like there’s an alternative method to use ssp_series_taxonomy() to return the value of the key. Looks like the taxonomy key value is hardcoded elsewhere in the plugin code, so it may require investigating whether to update this value throughout, and/or find another solution.