Recently all users (except UID 1) lost the ability to add content.
When going to node/add we get the message "no content types created yet"
When going to node/add/page we get "Access Denied, you are not authorized to access this page"
There are people having similar issues like here - https://www.drupal.org/node/1073994
I have already checked the navigation menu to see if that was the issue, since it seems to be a known bug, but this was not the case. All the permissions are set correctly in the permissions UI and database too.
I am not sure if this is relevant, but the site was migrated from 6 to 7
Any insights would be appreciated!