Hey Brian,
Thank you for reaching out to us!
To get started, could you please access your Dashboard and head over to Events > Settings > Imports and make sure that under Global Import Settings you have the “Import Limit Type” set by date range and the “Import Date Range Limit” is set to a shorter period of time like 3 months?
Also, could you please head over to Events > Import > Scheduled Imports and make sure that there’s no remaining Scheduled import on this list?
Thanks!