Whenever I use the prime tower it always falls over in the middle of a print and makes a mess. Does anyone have an idea as to how to fix this?
Hi MasterofBytes,
Try bigger tower brim, bigger min size (Luban: Prime Tower Minimum Volume), bigger tower diameter (by hand, like scale an object). 
I agree with what @Wyphorn said. Bigger brim is probably most important. In addition you can also:
Increase bed temp
Decrease the z-offset
Make sure the bed is clean
Also try turning on ZHop when retracted. That will lift the nozzle a bit, so it’s less likely to impact objects when moving on to them.
Increase the volume to like 23mm3.
I’ve been having the same problem. Anything above maybe 40mm and the prime tower falls over, and my prints are a mess. Trying a print now with the prime tower disabled to see what happens.
Is there a way to add a raft to the prime tower? That’s normally what I’d do when printing something that shape, so it would probably help here.
How did it go without a prime tower?
I never use the prime tower anymore. It’s a waste of material. Prints work just fine without it.
Even with a 36 mm^2 prime tower and a raft, it is falling over mid-print reliably for me now, approximately 100% of the time. It breaks loose at the bottom, i.e. there is inadequate adhesion.
Printing PETG with Breakway PLA as the adhesion layer. Works fine for the print, fails for the tower. Even tried telling it to add cross bracing.
There is clearly something very flawed about the way it is constructed. I’m turning it back off. What I don’t get is why they don’t just add a "crash the print head into an unused part of the bed) nozzle wipe mode. 
Yeah. Or add some brush. I have also problems with high prime towers