Javascipt on screen after adding SSL

After adding SSL to the site I get rubbish on different admin pages and on the frontpage of certain plugins.
When I deactivate the plugins this text doesn’t show, but I really do want to use them…..

int(8) string(23) “Undefined index: status” string(122) “/home/popkoorv/domains/popkoorvoix.nl/public_html/wp-content/plugins/custom-dashboard-widgets/custom-dashboard-widgets.php” int(782) array(11) { [“current_user”]=> &object(WP_User)#407 (8) { [“data”]=> object(stdClass)#453 (10) { [“ID”]=> string(1) “1” [“user_login”]=> string(9) “adminvoix” [“user_pass”]=> string(34) “$P$BIYe0.xS9fjmJip19C9igGG1U7cxPn1” [“user_nicename”]=> string(9) “adminvoix” [“user_email”]=> string(23) “[email protected]” [“user_url”]=> string(0) “” [“user_registered”]=> string(19) “2018-12-15 13:38:29” [“user_activation_key”]=> string(0) “” [“user_status”]=> string(1) “0” [“display_name”]=> string(9) “adminvoix” } [“ID”]=> int(1) [“caps”]=> array(1) { [“administrator”]=> bool(true) } [“cap_key”]=> string(15) “wp_capabilities” [“roles”]=> array(1) { [0]=> string(13) “administrator” } [“allcaps”]=> array(78) { [“switch_themes”]=> bool(true) [“edit_themes”]=> bool(true) [“activate_plugins”]=> bool(true) [“edit_plugins”]=> bool(true) [“edit_users”]=> bool(true) [“edit_files”]=> bool(true) [“manage_options”]=> bool(true) [“moderate_comments”]=> bool(true) [“manage_categories”]=> bool(true) [“manage_links”]=> bool(true) [“upload_files”]=> bool(true) [“import”]=> bool(true) [“unfiltered_html”]=> bool(true) [“edit_posts”]=> bool(true) [“edit_others_posts”]=> bool(true) [“edit_published_posts”]=> bool(true) [“publish_posts”]=> bool(true) [“edit_pages”]=> bool(true) [“read”]=> bool(true) [“level_10”]=> bool(true) [“level_9”]=> bool(true) [“level_8”]=> bool(true) [“level_7”]=> bool(true) [“level_6”]=> bool(true) [“level_5”]=> bool(true) [“level_4”]=> bool(true) [“level_3”]=> bool(true) [“level_2”]=> bool(true) [“level_1”]=> bool(true) [“level_0”]=> bool(true) [“edit_others_pages”]=> bool(true) [“edit_published_pages”]=> bool(true) [“publish_pages”]=> bool(true) [“delete_pages”]=> bool(true) [“delete_others_pages”]=> bool(true) [“delete_published_pages”]=> bool(true) [“delete_posts”]=> bool(true) [“delete_others_posts”]=> bool(true) [“delete_published_posts”]=> bool(true) [“delete_private_posts”]=> bool(true) [“edit_private_posts”]=> bool(true) [“read_private_posts”]=> bool(true) [“delete_private_pages”]=> bool(true) [“edit_private_pages”]=> bool(true) [“read_private_pages”]=> bool(true) [“delete_users”]=> bool(true) [“create_users”]=> bool(true) [“unfiltered_upload”]=> bool(true) [“edit_dashboard”]=> bool(true) [“update_plugins”]=> bool(true) [“delete_plugins”]=> bool(true) [“install_plugins”]=> bool(true) [“update_themes”]=> bool(true) [“install_themes”]=> bool(true) [“update_core”]=> bool(true) [“list_users”]=> bool(true) [“remove_users”]=> bool(true) [“promote_users”]=> bool(true) [“edit_theme_options”]=> bool(true) [“delete_themes”]=> bool(true) [“export”]=> bool(true) [“edit_niso_slider_carousel”]=> bool(true) [“read_niso_slider_carousels”]=> bool(true) [“delete_niso_slider_carousel”]=> bool(true) [“delete_niso_slider_carousels”]=> bool(true) [“edit_niso_slider_carousels”]=> bool(true) [“edit_niso_others_carousels_slider”]=> bool(true) [“publish_niso_slider_carousels”]=> bool(true) [“read_niso_private_carousels_slider”]=> bool(true) [“create_niso_slider_carousels”]=> bool(true) [“mdocs_batch_edit”]=> bool(true) [“mdocs_batch_move”]=> bool(true) [“mdocs_batch_delete”]=> bool(true) [“mdocs_allow_upload_frontend”]=> bool(true) [“mdocs_manage_options”]=> bool(true) [“mdocs_manage_settings”]=> bool(true) [“mdocs_allow_upload”]=> bool(true) [“administrator”]=> bool(true) } [“filter”]=> NULL [“site_id”:”WP_User”:private]=> int(1) } [“website_url”]=> string(26) “https://www.popkoorvoix.nl” [“admin_url”]=> string(36) “https://www.popkoorvoix.nl/wp-admin/” [“widget_button_class”]=> string(28) “main_bashboard_widget_button” [“data”]=> array(11) { [0]=> array(7) { [“title”]=> string(10) “Voorpagina” [“icon”]=> string(15) “fa fa-wordpress” [“link”]=> string(27) “post.php?post=2&action=edit” [“status”]=> string(7) “checked” [“administrator”]=> string(7) “checked” [“editor”]=> string(7) “checked” [“order”]=> string(1) “0” } [1]=> array(8) { [“title”]=> string(13) “Site bekijken” [“icon”]=> string(20) “dashicons-visibility” [“link”]=> string(8) “site_url” [“administrator”]=> string(7) “checked” [“editor”]=> string(7) “checked” [“author”]=> string(7) “checked” [“contributor”]=> string(7) “checked” [“order”]=> string(1) “1” } [2]=> array(8) { [“title”]=> string(7) “Profiel” [“icon”]=> string(30) “dashicons-universal-access-alt” [“link”]=> string(11) “profile.php” [“administrator”]=> string(7) “checked” [“editor”]=> string(7) “checked” [“author”]=> string(7) “checked” [“contributor”]=> string(7) “checked” [“order”]=> string(1) “2” } [3]=> array(8) { [“title”]=> string(9) “Berichten” [

The page I need help with: [log in to see the link]