I have the same problem on my Iphone and Ipad. But after a lot of trying I found a workaround. At my devices the market is only crashing if I open books or gifts, but not for itmes or boosters. Hence I open the market, I zoom in on the left side (so you only see the items you can buy) and then I click on gifts or books and then you can buy the items. It is also working for giving girls books or gifts. But you have to zoom in on the left side first. This is working 90% for me.