The SHRINE hub observed a time out while communicating with a remote site's adapter.
The adapter failed to respond to a request within the adapter's time limit.
If you are a user, supply all details to your site admin who can work with the hub and adapter admin to resolve the issue.
If you are the hub or adapter admin, be aware that a timeout problem may mask more serious issues. The default timeout is very generous.
An adapter that always times out most likely indicates an unresponsive adapter.
Sporadic timeouts, or timeouts for complex queries with large numbers of results but successful simple queries with few results, indicates performance problems at the adapter. Ultimately this may be fixed by extending the hub's timeout for adapters, but requires an investigation of the adapter's handling of the problematic queries.