"Has been unloaded and locked by IdleOperations" that doesn't seem to go away.

[asusralis]

This is being hosted on RavenDB Cloud. I have been using this ravendb server every day for the past week, but there are periods of time when it doesn't receive any traffic. I read that you can sometimes get this and it usually takes a small amount of time to be reloaded, but my database is still unloaded after 18 hours.

What exactly are you supposed to do in this situation?

Raven.Client.Exceptions.Database.DatabaseDisabledException: The database 'Main' has been unloaded and locked by IdleOperations
at Raven.Server.Routing.RouteInformation.UnlikelyWaitForDatabaseToLoad(RequestHandlerContext context, Task`1 database, DatabasesLandlord databasesLandlord, StringSegment databaseName) in D:\Builds\RavenDB-Stable-6.0\60017\src\Raven.Server\Routing\RouteInformation.cs:line 233
at Raven.Server.Routing.RouteInformation.WaitForDb(Task databaseLoading) in D:\Builds\RavenDB-Stable-6.0\60017\src\Raven.Server\Routing\RouteInformation.cs:line 283
at Raven.Server.Routing.RequestRouter.HandlePath(RequestHandlerContext reqCtx) in D:\Builds\RavenDB-Stable-6.0\60017\src\Raven.Server\Routing\RequestRouter.cs:line 283
at Raven.Server.RavenServerStartup.RequestHandler(HttpContext context) in D:\Builds\RavenDB-Stable-6.0\60017\src\Raven.Server\RavenServerStartup.cs:line 192

[ayende]

Please create a support ticket for that on the cloud portal
As a quick workaround, you can use the cloud portal to restart the instance.