Hi -
This morning, I got this error telling me that I have reached the file limit? I only have 2k items in the board and this is an enterprise account. I was under the impression the only limit is with the number of items.
Thanks for writing in!
At the moment there is a limit of 20,000 files per board on the account.
This is a platform limitation and unfortunately at this time cannot be increased.
If you do need to have access to more files on this board I would recommend adding in The Link Column, storing your files on a third party such as Dropbox or Google Drive, and then pasting the URL in this column.
I know this is not ideal, but I hope it might work as a workaround for you for now!
I hope this helps! Remember to mark as solved if this answers your question 
Best,
Dani