NGIO Consistently Crashing in 'Wilderness' when generating Grass Cache

[amphorae]

Hi, sorry if this topic has already appeared elsewhere - if so just redirect me, please. 

Anyway, I have been working on updating my grass cache and I have been getting consistent crashes in the EditorID part that says 'Wilderness' and JK's Skyrim has been mentioned as well. I have had issues with Markarth generating grass as well but I've just taken it out of the worlds to generate grass in so I'm not as concerned with that part.  Here is the pastebin link from the crash report.

I am pretty much an experienced noob when it comes to modding, so I don't quite understand how to read the crash report and know what steps to take to get rid of these issues so that I can generate the grass cache. Could any of you help me out here and point out where I can fix this? 

And yes, I realize my load order may be a mess if you read through the complete report. I'm working on it so please be patient with me lol.