Do you remember making yourself unlisted... I googled your name and it says you are unlisted causing your tree to disappear from public view
https://www.wikitree.com/wiki/Murphy-10023
"Living Murphy:
This is the account profile for a member of WikiTree. The profile is Unlisted, so there is no public information about the member."
All these people are still here
https://www.wikitree.com/genealogy/Murphy-Family-Tree-13090
but James
https://www.wikitree.com/wiki/Murphy-16099
has lost his parents.
Seems to have something to do with him becoming a user. If he disconnects his tree, he disconnects yours, because there's only one tree.
I don't think you understand. I'm there. My tree is not. Everything I've put in is empty. The only thing in there right now is my father, who I just helped join and had to redo and try to merge from my contributions link.
Watch is is on a drop down menu under My WikiTree
(edited to remove my information)
Your profiles are still there. This is your Watchlist
https://www.wikitree.com/index.php?title=Special:WatchedList&p=13316908
The problem seems to be that your father has made himself a new profile and attached you as his child. This disconnected you from the profile you'd previously made for him.
The trick now is to put in the connection between your father's new profile and your grandfather. Then everything will be back to normal.