I am helping a friend with a loose bottom bracket but I'm only really familiar with three piece cranks. The crank has about 1/16" of play to wiggle around freely. This would be no problem for me with a regualr square taper but I don't know what I'm doing with this. I have attached photos.

I know pictures of the right side of a bike are normally discouraged, but it's applicable here.


And the problem area:


Thanks in advance.