我的 Springboot 服务器遇到了问题。今天想启动它并遇到以下错误：
2019-02-21 10:35:33.332 INFO 10169 --- [ restartedMain] c.p.s.s.SpringbootMiddlewareApplication : Starting SpringbootMiddlewareApplication on rp_dell.mis.local with PID 10169 (/IdeaProjects/springboot-middleware/out/production/classes started in /IdeaProjects/springboot-middleware)
2019-02-21 10:35:33.336 INFO 10169 --- [ restartedMain] c.p.s.s.SpringbootMiddlewareApplication : No active profile set, falling back to default profiles: default
2019-02-21 10:35:33.438 INFO 10169 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@71a41d9e: startup date [Thu Feb 21 10:35:33 CET 2019]; root of context hierarchy
2019-02-21 10:35:34.172 WARN 10169 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - …