Sections in local & LIVE out of sync I created a new section (single) on my  local environment.

Then I pushed it to LIVE. There it is not showing up in the entries CP.

But it is showing up in the settings.

So I guess the project.yaml hasn't been applied correctely or something.

If I excecute ./craft project-config/rebuild on LIVE I get the error: 


  Exception 'yii\base\InvalidConfigException' with message 'The
  directory does not exist:
  /path/assets'
  
  in
  /path/vendor/yiisoft/yii2/web/AssetManager.php:213


But this has nothing to do with assets 

Also. If I go to said section in the settings and try to save it there is the following error:


  2019-07-15 14:06:43
  [-][1][aaa64a91c1fffdd268c2d774dc31daa4][error][yii\base\Exception]
  yii\base\Exception: Couldn’t save single entry due to validation
  errors on the slug and/or URI in
  /path/vendor/craftcms/cms/src/services/Sections.php:1561


What now?
If I create a folder assets at that location it works. I don't know what this asset folder is about.