[Invalid Plugin.yml]

[P1nk13P1]

Hello, I am writing this, because plugin cant load on my server, but I think its not only my Problem! I try to use this plugin as alternative to essentials for my 1.12.2 Spigot. But when I try to load this plugin via Plugman, at this moment I found why I cant even load the plugin(Here is what console say, when I write: /plugman load UltimateCore, I know what it is mean, but I cant fix this)
Can you fix?