How to Solve backend startup error: Quartz scheduler [ruoyischeduler]

Exception in thread “Quartz Scheduler [RuoyiScheduler]” org. springframework. scheduling. SchedulingException: Could not start Quartz Scheduler after delay; nested exception is org. quartz. SchedulerException: The Scheduler cannot be restarted after shutdown() has been called. Back end startup error

1. You should not brush the table related to scheduled tasks or dirty data appears in the scheduled task table. Try to clear the qrtz prefix table data and try again

2. The 80tomcat port is occupied. Use another port

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