"load is not a valid choice"

Server log

org.bukkit.plugin.InvalidDescriptionException: load is not a valid choice

What it means

load decides when the plugin is enabled, and only two values exist. Anything else makes the server refuse the plugin.

What causes it

load is set to something other than STARTUP or POSTWORLD.

How to fix it

Before

load: LATER

After

load: STARTUP

POSTWORLD is the default, so if you do not need the plugin before worlds load, just remove the line.

Check the whole file. Paste your plugin.yml or drop the plugin jar into Permistry. It finds this and about 40 other problems, and explains each one in plain words. It runs in your browser and nothing is uploaded.

Open the checker