Fatal error: Uncaught Error: Call to undefined function wp_is_block_theme() in /home/nordfynfriluftli/public_html/wp-content/themes/dt-the7/inc/mods/compatibility/gutenberg/block-theme/class-the7-block-theme-compatibility.php:103 Stack trace: #0 /home/nordfynfriluftli/public_html/wp-content/themes/dt-the7/inc/mods/compatibility/gutenberg/block-theme/class-the7-block-theme-compatibility.php(70): The7_Block_Theme_Compatibility->maybe_transform_the7_in_to_block_theme() #1 /home/nordfynfriluftli/public_html/wp-content/themes/dt-the7/inc/mods/compatibility/gutenberg/block-theme/class-the7-block-theme-compatibility.php(50): The7_Block_Theme_Compatibility->bootstrap() #2 /home/nordfynfriluftli/public_html/wp-content/themes/dt-the7/inc/theme-setup.php(429): The7_Block_Theme_Compatibility::instance() #3 /home/nordfynfriluftli/public_html/wp-content/themes/dt-the7/inc/init.php(84): require_once('/home/nordfynfr...') #4 /home/nordfynfriluftli/public_html/wp-content/themes/dt-the7/functions.php(26): require('/home/nordfynfr...') #5 / in /home/nordfynfriluftli/public_html/wp-content/themes/dt-the7/inc/mods/compatibility/gutenberg/block-theme/class-the7-block-theme-compatibility.php on line 103