🙂
Very droll, but the point is that although I don't use Goliath I might still be able to help with general principles (for example, it seems likely that the problem is due to the size of the plug-in, & there are quite a few general purpose tips for dealing with that).
People don't generally say what their XR-79 actually is, which is okay as far as it goes, but of course it's better if they can give a brief hint (interface/sampler/rifle), along with a description of what other stuff they have, their OS, & their version of Logic. The OP has done nothing wrong as such, but posting a link to a shop is not normally considered the best Forum etiquette. No insult intended to you, Axium.
I like to help, but I don't like to follow links or perform searches if I don't have to. (I will if I must, of course…)
Some people don't like bananas, & some people don't like adverts.
Sorry about the digression, Axium. Neither of us seem to have anything to say about your plug-in, except that it looks pretty resource-hungry. That being the case, there are a few things you could try to prevent the crashing, but it looks like you've already tried lots of different configurations — in which case, it may just be a not very well-written piece of software. Are there any bug reports on the manufacturer's website with respect to Logic?