Uncaught Error : Call to undefined function wp_use_widgets_block_editor() in
holistic-center/fw/core/core.theme.php:32
line 32 core.theme.php : if ( !is_admin() || wp_use_widgets_block_editor() ) {
Hi @AnnieCambie,
Please contact the author of your purchased theme, the theme author will assist you.
How to contact an author to get support or for any technical query:
Thanks