Hello, can you help me with this? i’m trying to install into a 5.5.5 wordpress version and i get this error:

Fatal error: Uncaught ArgumentCountError: array_merge() does not accept unknown named parameters in C:xampphtdocslauraysebastian5.5.xwp-includeswidgets.php:1265 Stack trace: #0 C:xampphtdocslauraysebastian5.5.xwp-includeswidgets.php(1265): array_merge(wp_inactive_widgets: Array, colega-blog-sidebar: Array) #1 C:xampphtdocslauraysebastian5.5.xwp-includesclass-wp-customize-widgets.php(279): retrieve_widgets(‘customize’) #2 C:xampphtdocslauraysebastian5.5.xwp-includesclass-wp-hook.php(287): WP_Customize_Widgets->override_sidebars_widgets_for_theme_switch(’’) #3 C:xampphtdocslauraysebastian5.5.xwp-includesclass-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #4 C:xampphtdocslauraysebastian5.5.xwp-includesplugin.php(478): WP_Hook->do_action(Array) #5 C:xampphtdocslauraysebastian5.5.xwp-settings.php(568): do_action(‘wp_loaded’) #6 C:xampphtdocslauraysebastian5.5.xwp-config.php(90): require_once(‘C:\xampp\htdocs…’) #7 C:xampphtdocslauraysebastian5.5.xwp-load.php(37): require_once(‘C:\xampp\htdocs…’) #8 C:xampphtdocslauraysebastian5.5.xwp-adminadmin.php(34): require_once(‘C:\xampp\htdocs…’) #9 C:xampphtdocslauraysebastian5.5.xwp-admincustomize.php(13): require_once(‘C:\xampp\htdocs…’) #10 {main} thrown in C:xampphtdocslauraysebastian5.5.xwp-includeswidgets.php on line 1265 Ha habido un error crítico en tu web. Por favor, revisa el buzón del correo electrónico de administración de tu sitio para instrucciones.

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How can i solve?

I'm working local

I installed un wp 7 Buy don't work properly 

This error appears when i try to actívate the theme after install it

Hello i wan't to tell you that i solved the problem installing theme on 5.7.x version.

I've a new ask:

The site i'm working for my client is a desing portfolio with images and some text. They asked me to add a translate button to change all the site from spanish into english. Can i add some module to do that?