You are working as a Product Owner in a Scrum team since a few weeks. During the current Sprint, the developers encountered some difficulties and after checking with the Scrum Master, they decided that the Sprint should be cancelled. Although the Product Backlog Items selected for those Sprints were challenging, the Sprint goal is still valid and you are available to answer any question that the developers may have. You are of the opinion that this Sprint should not be cancelled. What should be done?