Mobs are not Spawning due to breedable checkbox not being check?

living entity - any of the mobs that have spawning enabled

not spawning unless (check to make this entity breedable) is checked

water mobs are not having this issue

also my Mob_Skeleton_Pirate (On initial entity spawn) crashes the game

but works when spawned with a spawn egg

https://drive.google.com/open?id=1SUbs0Sudsay9GHOyio9OBwX7a390Pl25

Crash log: https://pastebin.com/f54FhkEv

So if you could not find out why mobs are not spawning correctly due to a checkbox in my workspace

Should I start my mod over again the code that the IDE generates seems to be getting worse and worse

Attempting to work on this mod makes me bash my head into my desk becaue

I don't know what's the issue most of the time. could be me or it could be the IDE things that should work don't

I don't know if it's from updating from the different versions

I keep holding off and waiting to work on my mod for new versions because of bugs and mising features but run into new bugs or issues

Would it be more advisable to just start over

If so I think waiting for a year or so for mc to mature would most likely be my best bet

Also if you could tell me what the crash was or is about I could try to work around it but telling me it does crash is something I already knew some clarification please

Some clarification on my part the reason I used a global variable for the command execute was because the ' ' around a word would be removed if clicked on again