Got this error below? then keep reading.
Error
Validation failed: Md5 confirmation doesn't match Md5
ActiveRecord::RecordInvalid exception raised
app/logical/upload_service.rb:42:in `start!'
app/controllers/uploads_controller.rb:55:in `create'
This is not an error but the site detecting that the picture you are trying to post has already been posted for one of the reasons below.
1. if you click submit button before the upload window turns green.
2. the picture is posted but was deleted for reasons like being a dup, lower quality, isn't tagged correctly, or an artist requested removal.
unfortunately there is no way for a normal user to find a dup since the reverse image is broken. you will have to manually look for it.
if you are a builder or up you can use this to find your dup https://booru.allthefallen.moe/uploads
hope that helps!
Updated