Sentry is a tool for monitoring and fixing crashes in real-time, but setting it up properly is crucial to minimize disruption. Common issues that developers face include resetting two-factor authentication, managing quotas, receiving "unable to fetch commits" messages, configuring integrations, and billing problems. To overcome these challenges, Sentry offers various solutions such as custom filters, the Delete and Discard feature, SDK configurations, on-demand capacity, spike protection, and integration configuration options like alert rules and issue management. Developers can also access Sentry's help center and documentation for guidance, and unlock its full potential with a Business trial.