SetSetting not storing values?

Context

So basically I am creating a plugin, its suppose to store values inside of it but that’s not working.
So I have a Table that is filled with values, yes I print the table before I use SetSetting() So I know it does have values. Afterwards all the values are set to “?”, well once I load the table.

I’m not sure why this is though, can you only store certain amounts of data inside of SetSetting()?