This is a remix of this Fibonacci Vase https://www.thingiverse.com/thing:1054598. All I have done is to add a base/bottom, that you can use it as a vase for real flowers.
If you've got problems with the normal file maybe the reduced polygon one will work better for you.
I printed it with spiralze-mode (vase-mode) out of PLA with a 0.4mm Nozzle and it is leakproofed.
If you want to make sure that it's leakproofed choose 104% - 110% flow.