Error trying to access Widgets

Hello,

A few days ago I lost a part of the web and I made a recovery of a previous version to recover it, the fact is that I had already made changes …

Once the recovery is done, I have tried to adjust the web to how it was before and these errors appear:
Fatal error: Uncaught Error: Call to a member function is_empty() on null in /usr/home/kenzaoil.com/web/thetreasurehunting/wp-content/plugins/wonderment-core/inc/plugins/woocommerce/widgets/dropdown-cart/templates/content.php:8 Stack trace: #0 /usr/home/kenzaoil.com/web/thetreasurehunting/wp-content/plugins/qode-framework/helpers/helper.php(141): include() #1 /usr/home/kenzaoil.com/web/thetreasurehunting/wp-content/plugins/qode-framework/helpers/helper.php(36): qode_framework_execute_template_with_params('/usr/home/kenza...', Array) #2 /usr/home/kenzaoil.com/web/thetreasurehunting/wp-content/plugins/wonderment-core/helpers/helper.php(85): qode_framework_get_template_part('/usr/home/kenza...', 'plugins/woocomm...', '/usr/home/kenza...', '', Array) #3 /usr/home/kenzaoil.com/web/thetreasurehunting/wp-content/plugins/wonderment-core/helpers/helper.php(67): wonderment_core_get_template_part('plugins/woocomm...', 'templates/conte...', '', Array) #4 /usr/home/kenzaoil.com/web/thetreasurehunting/wp-content/plugins/wonderment-core in /usr/home/kenzaoil.com/web/thetreasurehunting/wp-content/plugins/wonderment-core/inc/plugins/woocommerce/widgets/dropdown-cart/templates/content.php on line 8

I do not know whether to do another installation of a newer or older copy, or how to solve this problem so that the widgets that I had configured appear.