Try v0.1.2.1I actually tried finding other versions when I was installing it but couldn't, when I looked on the gethub I only saw the most recent version. Could you give me the link to the older versions?
EDIT - I found the older versions but it looks like they don't specify what version of terraria they're for, would you happen to know what version of your mod works with Terraria 1.3.4.4?