Disallow or pop-up error needed for folder names with certain characters that won't permit uploads

[foundscapes]

To solve this problem:

1. disallow people from using characters that will prevent uploads or
2. let people know when they create the folder with special characters via popup that this won't work

This error happened on both iphone xr and iphone 6s

Steps to recreate:

1. create new project folder with "/" in the name
2. add media to be uploaded
3. get error "status 409: conflict"