Is this compatible with PHP 7?

Hi,

We just upgraded our server to PHP 7 and this plugin started throwing errors:

PHP Fatal error:  Uncaught Error: Call to undefined function imagecreatefromstring() in /home/xxxxxxxxxx/public_html/wp-content/plugins/wp-structuring-markup/includes/wp-structuring-display.php:208
Stack trace:
#0 /home/xxxxxxxxxxxx/public_html/wp-content/plugins/wp-structuring-markup/includes/wp-structuring-display.php(591): Structuring_Markup_Display->get_image_dimensions('https://movietv...')
#1 /home/xxxxxxxxxxxxxxxxx/public_html/wp-content/plugins/wp-structuring-markup/includes/wp-structuring-display.php(118): Structuring_Markup_Display->set_schema_news_article(Array)
#2 /home/xxxxxxxxxxxx/public_html/wp-content/plugins/wp-structuring-markup/includes/wp-structuring-display.php(47): Structuring_Markup_Display->get_schema_data('post', Array)
#3 /home/xxxxxxxxxxxxxx/public_html/wp-content/plugins/wp-structuring-markup/includes/wp-structuring-display.php(27): Structuring_Markup_Display->set_schema(Object(Structuring_Markup_Admin_Db))
#4 /home/xxxxxxxx/public_html/wp-content/plugins/wp-structuring-markup/wp-structuring-markup.php(239): Structuring_Markup_Di in /home/xxxxxxxxxxxxxx/public_html/wp-content/plugins/wp-structuring-markup/includes/wp-structuring-display.php on line 208

This made all of our articles pages just give the dreaded wordpress white blank page. Once we deactivated the plugin, everything went back to normal.

Thanks!

https://ww.wp.xz.cn/plugins/wp-structuring-markup/