After update my website went down completely

Hi,

I tried updating all the modules from the admin/modules page on my drupal site. But it went down with this text:

The website encountered an unexpected error. Please try again later.

I checked the sites error-log and it said this: [11-May-2018 13:31:45 UTC] SymfonyComponentDependencyInjectionExceptionServiceNotFoundException: The service “plugin.manager.bootstrap_layouts” has a dependency on a non-existent service “plugin.manager.core.layout”. in /home/bas1/public_html/vendor/symfony/dependency-injection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php on line 58

Do I did a little searching on this and it says that bootstrap_layouts is not supported on cores after 8.3. and it says that you can try this patch: https://www.drupal.org/project/bootstrap_layouts/issues/2867380 and to uninstall some modules like bootstrap layouts. But I mean, I can´t even access the /admin site from my page so I can´t uninstall anything and where do I install the patch and how? Sorry I have really no idea of how to fix this, can somebody please help?

Drupal version: 


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