When running the TeamRaiser Participants task, you may experience the following error: Error Condition.
This task will select participants that are registered for selected TeamRaisers, or all TeamRaisers. The task is attempting to look through all TeamRaisers in your site that are not closed (including unpublished events). The task fails because there are too many TeamRaisers in your site that are active and unpublished.
The solution is to regularly Archive and Close TeamRaiser events that are no longer being used. Doing so will cut down on unnecessary volume that the task needs to look through.