"Blueprint could not be loaded because it derives from an invalid class. Check to make sure the parent class for this blueprint hasn't been removed!"

[anonymous_user_3bc48f321 (anonymous_user_3bc48f32)]

For everyone who is having the same problem, just copy the plugins folder from the ocean project into your project folder (not in the asset browser) and restart the engine. Then it should be ready to use and don’t throw any errors.