I’m getting an error when trying to save a photo. The error is with J, however I need the data saved Under these three categories

For example here they are.

i = 1
UserID = david.hall
UniqueID = 838295
ChapterID = Chapter 1: Options

for I,v in pairs(Album) do
    j = "Documents:PhotoImage"..tostring(i)..tostring(UserID)..tostring(UniqueID)..tostring(ChapterID)
    saveImage(j, v.img)

Try removing the : in the ChapterID. If you still get an error, try removing the . in UserID or the space in ChapterID.