A blocker is an obstacle that prevents the team from making progress on the stories planned for the current sprint. The team should come together to assess the situation and make a collective decision.
An issue that isn't blocking the current sprint should be addressed in the next one. The team should be coached on the importance of sticking to the sprint commitment.
Sprint Planning or Sprint Commitment is the team's agreement to focus their collective effort on delivering specific goals. Unforeseen issues should be handled thoughtfully without jeopardizing commitments.
Teams should make decisions collectively, stay transparent with stakeholders, and follow Agile principles to overcome blockers and issues.