I have 10mb of wiring diagrams uploaded and many are duplicates, I can't seem to delete older ones, and I can't upload any new ones

What should I do?

When I click on "Manage Attachments" nothing happens, no popup window like before

 

Try going to your user CP. Check and see if your storage usage is full maybe?

 

It says "You are currently using 18.08 MB to store 378 uploaded attachments"

Thought it said 10mb last time, lol

So what is the limit, I assume 18MB?

But I can't delete any of the old ones or duplicates when I go to the old threads, when I click on "Manage Attachments" nothing happens

 

You can access them from user cp- attachments on left side.

Idk what the limit is.