@madmodder123 I changed the vector images of buttons to symbolic (playstation). I converted them from a raster to a vector in an inscape. In this thread, @jacobfk20 helped me with the compilation, and everything worked.
FYI for anyone browsing this in the future The first line of those 4 blank ones is the name of the folder, the second is the description, the third is the link to a thumbnail and I have no clue what the fourth one is. Might be worth adding this as a bug in the github though! The devs may be unaware that editing the meta data on a folder is not populating the fields like it should!