Warning from SpongeVanilla 1.11 when loading (also affects 1.10):
[21:00:36 WARN] [Sponge]: Detected plugin with invalid plugin ID 'io.github.hsyyid.essentialcmds' from mods/EssentialCmds-1.10.2-8.1.14-universal.jar. Plugin IDs should be lowercase, and only contain characters from a-z, dashes or underscores, start with a lowercase letter, and not exceed 64 characters.
Warning from SpongeVanilla 1.11 when loading (also affects 1.10):
[21:00:36 WARN] [Sponge]: Detected plugin with invalid plugin ID 'io.github.hsyyid.essentialcmds' from mods/EssentialCmds-1.10.2-8.1.14-universal.jar. Plugin IDs should be lowercase, and only contain characters from a-z, dashes or underscores, start with a lowercase letter, and not exceed 64 characters.