MSC FPLE RGSS3 has stopped working

[Khanos]

Working on a project and I wanted to have some first person dungeons in. I have downloaded MSC's FPLE for VXAce but when I try to export the 3d dungeon I get " RGSS3 has stopped working" 


I have tried making a new project, to export to and also new map in fple.


If anyone has had similar issues or knows what could be causing this that would be great.


Thanks