Fatal error after update to 1.5.6

After the plugin updated to 1.5.6, my site stopped working.

I see the following error in my error log:
[Tue Dec 07 05:57:35.283306 2021] [proxy_fcgi:error] [pid 19444:tid 140466938951424] [client xxx.xxx.xxx.xxx:57014] AH01071: Got error 'PHP message: PHP Fatal error: Uncaught Error: Call to undefined function get_plugin_data() in /opt/bitnami/apps/wordpress/htdocs/wp-content/plugins/stock-locations-for-woocommerce/stock-locations-for-woocommerce.php:30\nStack trace:\n#0 /opt/bitnami/apps/wordpress/htdocs/wp-settings.php(409): include_once()\n#1 /opt/bitnami/apps/wordpress/htdocs/wp-config.php(110): require_once('/opt/bitnami/ap...')\n#2 /opt/bitnami/apps/wordpress/htdocs/wp-load.php(50): require_once('/opt/bitnami/ap...')\n#3 /opt/bitnami/apps/wordpress/htdocs/wp-blog-header.php(13): require_once('/opt/bitnami/ap...')\n#4 /opt/bitnami/apps/wordpress/htdocs/index.php(17): require('/opt/bitnami/ap...')\n#5 {main}\n thrown in /opt/bitnami/apps/wordpress/htdocs/wp-content/plugins/stock-locations-for-woocommerce/stock-locations-for-woocommerce.php on line 30'

Any suggestions?