External sharing get a lot of deny permissions

[ShareP1610]

I have given an external user edit permissions on a site and when checking permissions it got a lot of deny on it.

Were do they come from?

The user can now access the page but not the doc lib.

I saw somebody with the same problem but for him it was sharing domain restrictions. I got no sharing restrictions by domains 

When checking permissions for this doc lib:

Thanks

[#2 · Accepted solution]

@ShareP1610 There is also a domain restriction setting under active sites.

Mark your site and click sharing in column headers. 

And you will find domain restrictions there as well