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Our client’s site is experiencing this 500 error with version 7.0.0:
PHP Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in wp-content/plugins/nelio-ab-testing/public/helpers/class-nelio-ab-testing-main-script.php:250
Stack trace:
#0 wp-content/plugins/nelio-ab-testing/public/helpers/class-nelio-ab-testing-main-script.php(250): array_map(Object(Closure), NULL)
#1 wp-content/plugins/nelio-ab-testing/public/helpers/class-nelio-ab-testing-main-script.php(68): Nelio_AB_Testing_Main_Script->get_relevant_heatmap_summaries()
#2 wp-includes/class-wp-hook.php(324): Nelio_AB_Testing_Main_Script->enqueue_script('')
#3 wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#4 wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#5 wp-includes/script-loader.php(2265): do_action('wp_enqueue_scri...')
#6 wp-includes/class-wp-hook.php(324): wp_enqueue_scripts('')
#7 wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#8 wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#9 wp-includes/general-template.php(3050): do_action('wp_head')
#10 wp-content/themes/divi-child/header.php(40): wp_head()
#11 wp-includes/template.php(810): require_once('/nas/content/li...')
#12 wp-includes/template.php(745): load_template('/nas/content/li...', true, Array)
#13 wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#14 wp-content/themes/divi-child/page.php(2): get_header()
#15 wp-includes/template-loader.php(106): include('/nas/content/li...')
#16 wp-blog-header.php(19): require_once('/nas/content/li...')
#17 index.php(17): require('/nas/content/li...')
#18 {main} thrown in wp-content/plugins/nelio-ab-testing/public/helpers/class-nelio-ab-testing-main-script.php on line 250