quest completely stuck.

[monkeybugs]

I was working on June's huge list of items to retrieve to free Greer from prison. Was almost complete. All I had to do was return the dishes to June. I was on a ship with another person who had just caught the Navy officer and had to maroon him on an island. We headed to an island and marooned him. When we did that, it said my quest to deliver plates was complete, but it did not give me a new quest. I have tried everything- I visited June, who just says Let's start again, but won't let me start again. I have not received a new quest in days. I can't get a new one and I can't drop the one I have been working on. Anyone have any suggestions on what to do?