New glitch? – Plug Toolbox for Minecraft Review

I have used this app for awhile and it has worked since, but now, anytime i export a world file from Minecraft to plug, it works, but when I open the app it imports the app fine but when the world is selected and I try to edit it, it crashes the entire app, for example; (*clicks "player inventory"* - *app crashes*). It's extremely annoying and if you guys could reply with a solution or explanation, that'd be great.
Review by RottenMemes on Plug Toolbox for Minecraft.