ERROR: Failure("SPIN920.SPL: read out of bounds")?

I have been trying for a week to get a working install of EET going on my MacBook Pro. I have gotten this error several times with different mods or different components within mods during an EET install on MacOS. I am using @subtledoctor OS X Intsaller and the newest version of WEIDU. When I try to install Spell Revisions and the first component I get the error, but only if install as part of EET. Not of I install on unmoved game. I get the same error while trying to install reduced XP component for quests as part of EET Tweaks. I also got it on a couple of other mods. Anybody have an idea what it means?

Also, I get an error on other mods about a parsing.error. What is a parsing.error and how do I fix?