http://www.wilojewelry.com/product/amazonite-wrist-mala/
Had a look and, for me, most of the variations are purchasable, though a few are not. Looks like the ones that are not are either not setup fully or there is some corruption in the list. On the product page, Product data section, variations tab, every product has an #id number next to it. Please have a look at:
#3795 – no attribute set. This one worries me the most as a possible source of problems.
#3796, #3752 – Gold Hamsa – not visible: ensure these are enabled. Look for the enabled checkbox.
#3753, #3797, #3798, #3743 Gold Lotus – not visible: ensure these are enabled
#3754 Gold OM – not visible: ensure this is enabled
#3748, #3747 Gold Peace sign – not visible: ensure these are enabled
#3788, #3787, #3756, #3759, Gold Tree of Life – not visible: ensure these are enabled
#3744, #3757 Rose Gold Om – not visible: ensure these are enabled
If you can’t find any of these ids, or if you find one that is in fact enabled, it looks like there is some corruption in the list. If an #id is in the markup it should be in the variations list. This problem has been reported on here rarely, but its difficult to be sure without double checking the variations setup.
If you can find one that I say is not visible, based on the inspection of the page markup, and it is in fact enabled, could you do a screenshot of that particular variation’s setup box, so its other settings can be checked. Pick just one as a sample.
If this just can’t be resolved, probably the best way of going forward would be to remake the product page and then delete the current product.
