An Administrator that is no longer with the company owns some scheduled reports, but I do not see available actions to affect them.
Scheduled report actions are only accessible to the Administrator who created them. What you can do is identify the names of the specific scheduled reports and Contact Support and reference this article. Request to have these reports transferred to an Active Administrator who will then be able to affect them as needed. Here is some data that support will need:
Names of scheduled reports
Name/ID of an Active Administrator to transfer the reports