Fatal error: Uncaught Error: Call to undefined function is_cart() in C:\Users\lucac\.valet\Sites\nustox\web\app\themes\nustox-theme\functions.php:70 Stack trace: #0 C:\Users\lucac\.valet\Sites\nustox\web\wp\wp-includes\class-wp-hook.php(286): my_custom_wc_free_shipping_notice(Object(WP)) #1 C:\Users\lucac\.valet\Sites\nustox\web\wp\wp-includes\class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #2 C:\Users\lucac\.valet\Sites\nustox\web\wp\wp-includes\plugin.php(515): WP_Hook->do_action(Array) #3 C:\Users\lucac\.valet\Sites\nustox\web\wp\wp-includes\class-wp.php(726): do_action_ref_array('wp', Array) #4 C:\Users\lucac\.valet\Sites\nustox\web\wp\wp-includes\functions.php(960): WP->main('') #5 C:\Users\lucac\.valet\Sites\nustox\web\wp\wp-blog-header.php(16): wp() #6 C:\Users\lucac\.valet\Sites\nustox\web\index.php(5): require('C:\\Users\\lucac\\...') #7 C:\Users\lucac\AppData\Roaming\Composer\vendor\cretueusebiu\valet-windows\server.php(132): require('C:\\Users\\lucac\\...') #8 {main} thrown in C:\Users\lucac\.valet\Sites\nustox\web\app\themes\nustox-theme\functions.php on line 70