Importing layers

I’m trying to import layer on coastal explorer on my iPhone and it won’t do anything

What is the current process you are trying in order to achieve this?

I go to layers then press import and select the chart file and press open then it brings me back to coastal explorer

That must be some NOB file you’re importing! According to our server logs, you have 27,000 active items in your cloud-synchronization database along with 39,000 items that have been marked as deleted. I think you may have exceeded some sort of limit that we didn’t know we had. We will need a while to figure out what to do about this.

Yeah I had large file for the upper and lower Mississippi River because I’m a Towboat pilot, is there anyway I can just clear everything and start over, that’s what I was trying to do, I broke my river chart down into individual river segments so it wasn’t just one big file