Fatal error on some sites

[thatdevgirl]

The following fatal error happened on mccourt.g.e when we were testing PHP 8:

Fatal error: Uncaught ArgumentCountError: array_merge() does not accept unknown named parameters in /code/wp-content/plugins/block-controller/inc/packages.php:125 Stack trace: #0 [internal function]: array_merge(Text: Array, Media: Array, Design: Array, Widgets: Array, Embeds: Array) #1 /code/wp-content/plugins/block-controller/inc/packages.php(125): call_user_func_array('array_merge', Array) #2 /code/wp-content/plugins/block-controller/inc/settings.php(32): ThreePM\BlockController\Packages->get_all_blocks() #3 /code/wp-content/plugins/block-controller/inc/settings.php(117): ThreePM\BlockController\Settings->__construct() #4 /code/wp-content/plugins/block-controller/block-controller.php(20): require_once('/code/wp-conten...') #5 /code/wp-settings.php(428): include_once('/code/wp-conten...') #6 /code/wp-config.php(287): require_once('/code/wp-settin...') #7 /code/wp-load.php(50): require_once('/code/wp-config...') #8 /code/wp-blog-header.php(13): require_once('/code/wp-load.p...') #9 /code/index.php(17): require('/code/wp-blog-h...') #10 {main} thrown in /code/wp-content/plugins/block-controller/inc/packages.php on line 125

Let's test this on PHP 8 locally to see if I can reproduce.