fix an outdated WP site

[05-Jul-2021 14:06:53 UTC] PHP Warning: Illegal string offset '.page-header.wpex-supports-mods .page-header-title' in /home/gfbrasil/public_html/emilie/wp-content/themes/Total/framework/customizer/customizer.php on line 693
[05-Jul-2021 14:06:53 UTC] PHP Warning: Illegal string offset '.page-header.wpex-supports-mods .page-header-title' in /home/gfbrasil/public_html/emilie/wp-content/themes/Total/framework/customizer/customizer.php on line 747
[05-Jul-2021 14:06:53 UTC] PHP Fatal error: Uncaught Error: Cannot use string offset as an array in /home/gfbrasil/public_html/emilie/wp-content/themes/Total/framework/customizer/customizer.php:747
Stack trace:
#0 /home/gfbrasil/public_html/emilie/wp-content/themes/Total/framework/customizer/customizer.php(802): WPEX_Customizer->loop_through_inline_css('css')
#1 /home/gfbrasil/public_html/emilie/wp-includes/class-wp-hook.php(292): WPEX_Customizer->head_css('/*ACCENT COLOR*...')
#2 /home/gfbrasil/public_html/emilie/wp-includes/plugin.php(212): WP_Hook->apply_filters('/*ACCENT COLOR*...', Array)
#3 /home/gfbrasil/public_html/emilie/wp-content/themes/Total/functions.php(1135): apply_filters('wpex_head_css', '')
#4 /home/gfbrasil/public_html/emilie/wp-includes/class-wp-hook.php(292): WPEX_Theme_Setup::custom_css('')
#5 /home/gfbrasil/public_html/emilie/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array)
#6 /home/gfbrasil/public_html/emilie/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#7 /home/gfbrasil/public_html/emilie/wp-inc in /home/gfbrasil/public_html/emilie/wp-content/themes/Total/framework/customizer/customizer.php on line 747