Hi! I cannot update my Nature Bliss Pro Theme. I get a fatal error:

Error: Attempt to modify property “response” on bool in /home/.sites/265/site3118098/web/wp-content/themes/nature-bliss-pro/updater/theme-updater-class.php:90
Stack trace:
#0 /home/.sites/265/site3118098/web/wp-includes/class-wp-hook.php(326): EDD_Theme_Updater->theme_update_transient(false)
#1 /home/.sites/265/site3118098/web/wp-includes/plugin.php(205): WP_Hook->apply_filters(false, Array)
#2 /home/.sites/265/site3118098/web/wp-includes/option.php(2544): apply_filters(‘site_transient_…’, false, ‘update_themes’)
#3 /home/.sites/265/site3118098/web/wp-includes/update.php(599): get_site_transient(‘update_themes’)
#4 /home/.sites/265/site3118098/web/wp-includes/class-wp-hook.php(322): wp_update_themes()
#5 /home/.sites/265/site3118098/web/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#6 /home/.sites/265/site3118098/web/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#7 /home/.sites/265/site3118098/web/wp-admin/includes/class-theme-upgrader.php(520): do_action(‘upgrader_proces…’, Object(Theme_Upgrader), Array)
#8 /home/.sites/265/site3118098/web/wp-admin/includes/ajax-actions.php(4319): Theme_Upgrader->bulk_upgrade(Array)
#9 /home/.sites/265/site3118098/web/wp-includes/class-wp-hook.php(324): wp_ajax_update_theme(”)
#10 /home/.sites/265/site3118098/web/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(”, Array)
#11 /home/.sites/265/site3118098/web/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#12 /home/.sites/265/site3118098/web/wp-admin/admin-ajax.php(192): do_action(‘wp_ajax_update-…’)
#13 {main}
thrown