A project schedule's risk level continues to increase during project execution because sprints are consistently...

Engage with the project team to understand the schedule risk problem and present a solution to the project sponsor.

Conduct a risk review meeting to gain a better understanding of the schedule, then document the results.

Schedule a meeting with the scrum master to explain that adding additional sprints is necessary to reduce risks.

Notify the project sponsor of the schedule risk and request support to increase the project budget.