Fatal error on website

Please, our website this morning appeared with Fatal Error...


Fatal error: Uncaught TypeError: trim(): Argument #1 ($string) must be of type string, stdClass given in /home2/macaviva/public_html/wp-content/themes/pur/vamtam/classes/less-bridge.php:40 Stack trace: #0 /home2/macaviva/public_html/wp-content/themes/pur/vamtam/classes/less-bridge.php(40): trim() #1 /home2/macaviva/public_html/wp-content/themes/pur/vamtam/classes/enqueues.php(444): VamtamLessBridge::prepare_vars_for_export() #2 /home2/macaviva/public_html/wp-content/themes/pur/vamtam/classes/enqueues.php(252): VamtamEnqueues::print_theme_options() #3 /home2/macaviva/public_html/wp-includes/class-wp-hook.php(308): VamtamEnqueues::styles() #4 /home2/macaviva/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #5 /home2/macaviva/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #6 /home2/macaviva/public_html/wp-includes/script-loader.php(2180): do_action() #7 /home2/macaviva/public_html/wp-includes/class-wp-hook.php(308): wp_enqueue_scripts() #8 /home2/macaviva/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #9 /home2/macaviva/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #10 /home2/macaviva/public_html/wp-includes/general-template.php(3043): do_action() #11 /home2/macaviva/public_html/wp-content/themes/pur/header.php(18): wp_head() #12 /home2/macaviva/public_html/wp-includes/template.php(783): require_once('/home2/macaviva...') #13 /home2/macaviva/public_html/wp-includes/template.php(718): load_template() #14 /home2/macaviva/public_html/wp-includes/general-template.php(48): locate_template() #15 /home2/macaviva/public_html/wp-content/themes/pur/page.php(8): get_header() #16 /home2/macaviva/public_html/wp-includes/template-loader.php(106): include('/home2/macaviva...') #17 /home2/macaviva/public_html/wp-blog-header.php(19): require_once('/home2/macaviva...') #18 /home2/macaviva/public_html/index.php(17): require('/home2/macaviva...') #19 {main} thrown in /home2/macaviva/public_html/wp-content/themes/pur/vamtam/classes/less-bridge.php on line 40