Multisite - One site is display blank white page

I have a multisite setup and one site is now randomly displaying a blank white page, it can’t be a plugin or theme issue because the same plugins and theme are activated on multiple sites and they are working.

I activated error logs and here is what is coming back, can anyone work out what the issue is and how to fix it;

[09-Aug-2017 21:48:52 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_menu_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: tgmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:48:52 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_url_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: tgmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:48:52 UTC] WordPress database error Table ‘_wp378.wpv8_14_nf3_forms’ doesn’t exist for query SELECT DISTINCT wpv8_14_nf3_forms.id FROM wpv8_14_nf3_forms made by include(‘wp-admin/edit-form-advanced.php’), require_once(‘wp-admin/admin-header.php’), do_action(‘admin_print_scripts-post.php’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, Vc_Shortcodes_Manager->buildShortcodesAssets, WPBMap::getAllShortCodes, WPBMap::generateData, WPBMap::setElementSettings, call_user_func, Vc_Vendor_NinjaForms->addShortcodeSettings, Vc_Vendor_NinjaForms->get_forms, NF_Abstracts_ModelFactory->get_forms, NF_Abstracts_Model->find

[09-Aug-2017 21:48:53 UTC] WordPress database error Table ‘_wp378.wpv8_14_nf3_forms’ doesn’t exist for query SELECT DISTINCT wpv8_14_nf3_forms.id FROM wpv8_14_nf3_forms made by include(‘wp-admin/edit-form-advanced.php’), wp_editor, _WP_Editors::editor, do_action(‘media_buttons’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, media_buttons, apply_filters(‘media_buttons_context’), WP_Hook->apply_filters, call_user_func_array, NF_Admin_AddFormModal->insert_form_tinymce_buttons, NF_Abstracts_ModelFactory->get_forms, NF_Abstracts_Model->find

[09-Aug-2017 21:48:53 UTC] WordPress database error Table ‘_wp378.wpv8_14_nf3_forms’ doesn’t exist for query SELECT DISTINCT wpv8_14_nf3_forms.id FROM wpv8_14_nf3_forms made by include(‘wp-admin/edit-form-advanced.php’), do_meta_boxes, call_user_func, NF_Admin_Metaboxes_AppendAForm->render_metabox, NF_Abstracts_ModelFactory->get_forms, NF_Abstracts_Model->find

[09-Aug-2017 21:49:14 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_menu_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: tgmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:49:14 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_url_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: tgmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:49:32 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_menu_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: tgmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:49:32 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_url_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: gmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:49:43 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_menu_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: tgmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:49:43 UTC] PHP Notice: tgmpa was called with an argument that is deprecated since version 2.4.0! The parent_url_slug config parameter was removed in TGMPA 2.4.0. In TGMPA 2.5.0 an alternative was (re-)introduced. Please adjust your configuration. For more information visit the website: tgmpluginactivation.com/configuration/#h-configuration-options. in /wp-includes/functions.php on line 4023

[09-Aug-2017 21:49:44 UTC] WordPress database error Table ‘_wp378.wpv8_14_nf3_forms’ doesn’t exist for query SELECT DISTINCT wpv8_14_nf3_forms.id FROM wpv8_14_nf3_forms made by include(‘wp-admin/edit-form-advanced.php’), require_once(‘wp-admin/admin-header.php’), do_action(‘admin_print_scripts-post.php’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, Vc_Shortcodes_Manager->buildShortcodesAssets, WPBMap::getAllShortCodes, WPBMap::generateData, WPBMap::setElementSettings, call_user_func, Vc_Vendor_NinjaForms->addShortcodeSettings, Vc_Vendor_NinjaForms->get_forms, NF_Abstracts_ModelFactory->get_forms, NF_Abstracts_Model->find

[09-Aug-2017 21:49:44 UTC] WordPress database error Table ‘_wp378.wpv8_14_nf3_forms’ doesn’t exist for query SELECT DISTINCT wpv8_14_nf3_forms.id FROM wpv8_14_nf3_forms made by include(‘wp-admin/edit-form-advanced.php’), wp_editor, _WP_Editors::editor, do_action(‘media_buttons’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, media_buttons, apply_filters(‘media_buttons_context’), WP_Hook->apply_filters, call_user_func_array, NF_Admin_AddFormModal->insert_form_tinymce_buttons, NF_Abstracts_ModelFactory->get_forms, NF_Abstracts_Model->find

I would start by looking at /wp-includes/functions.php on line 4023

Something is missing or broken on that line. Perhaps a plugin? Certainly a database error.

Issue resolved. There seems to have been something funny going on with The7 Theme after an update that was glitching with Wordpress.

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