some problem after 5.6 update

First:
Warning: Invalid argument supplied for foreach() in /home/customer/www/*****.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/welcome/views/extensions.php on line 119

Second:
Fatal error: Uncaught Error: Function name must be a string in /home/customer/www/********.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/fields/raw/parsedown.php:895 Stack trace: #0 /home/customer/www/********.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/fields/raw/parsedown.php(932): Parsedown->element(Array) #1 /home/customer/www/*******.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/fields/raw/parsedown.php(258): Parsedown->elements(Array) #2 /home/customer/www/*******.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/fields/raw/parsedown.php(49): Parsedown->lines(Array) #3 /home/customer/www/********.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/welcome/welcome.php(464): Parsedown->text(‘## 3.5.4\n* Modi…’) #4 /home/customer/www/*******.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc in /home/customer/www/*********.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/fields/raw/parsedown.php on line 895

third:
Fatal error: Uncaught Error: Call to a member function get_error_message() on array in /home/customer/www/******.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/class.redux_helpers.php:483 Stack trace: #0 /home/customer/www/********.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/welcome/views/status_report.php(21): Redux_Helpers::compileSystemStatus(false, true) #1 /home/customer/www/********.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/welcome/welcome.php(449): include_once(‘/home/customer/…’) #2 /home/customer/www/********.com/public_html/wp-includes/class-wp-hook.php(287): Redux_Welcome->status_screen(”) #3 /home/customer/www/*********.com/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(”, Array) #4 /home/customer/www/******.com/public_html/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #5 /home/customer/www/*******.com/public_html/wp-admin/admi in /home/customer/www/********.com/public_html/wp-content/themes/the-rex/framework/ReduxFramework/ReduxCore/inc/class.redux_helpers.php on line 483

thanks for help