Some of AdvDupe2's dupe files are broken

This problem only started for me today. I woke up to resume my build, only to find out my recent dupes are broken. These 2 error messages appear as I try to open my dupes:

[AdvDupe2Notify]Could not open addons/adv dupe2/lua/advdupe2/sv_codec.lua:233: expected value, got EOF
[AdvDupe2Notify] Could not open addons/adv dupe2/lua/advdupe2/sv_codec.lua:358: attempt to index upvalue ‘buff’ (a nil value)

I’m not sure why. It was perfectly fine just yesterday.