Error Type E_ERROR

Hi! after i updated wordpress to 7.0.1 i´ve received an email with this message:

Detalhes do erro
================
Um erro do tipo E_ERROR foi causado na linha 57 do arquivo

MYWEBSITE/public_html/wp-content/themes/royal-elementor-kit/inc/admin/activation/class-welcome-notice.php. Mensagem de erro: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in MYWEBSITE/public_html/wp-content/themes/royal-elementor-kit/inc/admin/activation/class-welcome-notice.php:57

Stack trace:
#0 MYWEBSITE/public_html/wp-content/themes/royal-elementor-kit/inc/admin/activation/class-welcome-notice.php(347): REK_Welcome_Notice->get_plugin_status()

#1 MYWEBSITE/public_html/wp-content/themes/royal-elementor-kit/inc/admin/activation/class-welcome-notice.php(333): REK_Welcome_Notice->render_notice_content()

#2 MYWEBSITE/public_html/wp-includes/class-wp-hook.php(341): REK_Welcome_Notice->render_notice()

#3 MYWEBSITE/public_html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()

# 4MYWEBSITE/public_html/wp-includes/plugin.php(522): WP_Hook->do_action()

# 5 MYWEBSITE/public_html/wp-admin/admin-header.php(313): do_action()

# 6 MYWEBSITE/public_html/wp-admin/about.php(37): require_once(‘/home/u90633552…’)

# 7 {main}

it hasn´t broken anything by now , but i found important to send it to you. thanks a lot!