first check, if you merge the bodies does it work > nope
second check, if you delete the features you created and then do an import diagnostic do your parts survive > nope
fix the bad face first
re add your lids
merge the bodies together
and then make sure it is water tight by creating a body overtop of your model that is a large block. then subtract your geometry from the block. if it can create a fluid volume, then flow will work.
Thanks Jared. I had trouble finding the bad face so I ended up just doing a cross section cut and did a revolve of the inside geometry. Thanks for your help.