Error crítico al cambiar al idioma /es/  

Hola Aurora

Revisando los log veo el siguiente error:

[21-May-2025 09:34:14 UTC] PHP Fatal error: Uncaught ArgumentCountError: 3 arguments are required, 2 given in /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/metaboxes/tabs/tab_header.php:83
Stack trace:
#0 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/metaboxes/tabs/tab_header.php(83): sprintf()
#1 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/metaboxes/metaboxes.php(271): avada_page_options_tab_header()
#2 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/class-fusion-dynamic-css-from-options.php(160): PyreThemeFrameworkMetaboxes->get_options()
#3 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/class-fusion-dynamic-css-from-options.php(126): Fusion_Dynamic_CSS_From_Options->init()
#4 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/class-wp-hook.php(324): Fusion_Dynamic_CSS_From_Options->dynamic_css_array_filter_po()
#5 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#6 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/lib/inc/class-fusion-dynamic-css-helpers.php(390): apply_filters()
#7 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/lib/inc/class-fusion-dynamic-css.php(306): Fusion_Dynamic_CSS_Helpers->get_dynamic_css()
#8 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/lib/inc/class-fusion-dynamic-css-helpers.php(374): Fusion_Dynamic_CSS->generate_final_css()
#9 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/lib/inc/class-fusion-dynamic-css-file.php(113): Fusion_Dynamic_CSS_Helpers->get_dynamic_css_id()
#10 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/lib/inc/class-fusion-dynamic-css-file.php(180): Fusion_Dynamic_CSS_File->file()
#11 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/lib/inc/class-fusion-dynamic-css-file.php(55): Fusion_Dynamic_CSS_File->can_write()
#12 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/lib/inc/class-fusion-dynamic-css.php(212): Fusion_Dynamic_CSS_File->__construct()
#13 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/class-wp-hook.php(324): Fusion_Dynamic_CSS->init()
#14 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#15 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/plugin.php(517): WP_Hook->do_action()
#16 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/script-loader.php(2277): do_action()
#17 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/class-wp-hook.php(324): wp_enqueue_scripts()
#18 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#19 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/plugin.php(517): WP_Hook->do_action()
#20 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/general-template.php(3192): do_action()
#21 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/header.php(21): wp_head()
#22 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/template.php(810): require_once('/home/hosting16...')
#23 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/template.php(745): load_template()
#24 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/general-template.php(48): locate_template()
#25 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/100-width.php(15): get_header()
#26 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-includes/template-loader.php(106): include('/home/hosting16...')
#27 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-blog-header.php(19): require_once('/home/hosting16...')
#28 /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/index.php(17): require('/home/hosting16...')
#29 {main}
thrown in /home/hosting163656eu/public_html/hosting163656eu-281474.webempresa.site/wp-content/themes/Avada/includes/metaboxes/tabs/tab_header.php on line 83

Prueba lo siguiente:

.- Accede a tu cuneta de WePanel -> Herramientas -> Versiones de PHP

.- Modifica la version de PHP por la 7.4

-> Cambiar la versión de PHP

Revisa si con eso se soluciona y nos comentas.

Un saludo