我的博客今天早上突然发生访问‘域名：8090’无法访问，但是访问‘域名：8090/console’可以访问成功的情况，
之后访问后台路径'ip:8090/console'可以正常进入，但是无法进行文章预览操作。
跟踪堆栈如下：
`2024-04-28T11:51:42.451+08:00 ERROR 7 --- [oundedElastic-2] org.thymeleaf.TemplateEngine : [THYMELEAF][boundedElastic-2] Exception processing template "index": Error during execution of processor 'org.thymeleaf.standard.processor.StandardWithTagProcessor' (template: "modules/sidebar" - line 14, col 19)
org.thymeleaf.exceptions.TemplateProcessingException: Error during execution of processor 'org.thymeleaf.standard.processor.StandardWithTagProcessor' (template: "modules/sidebar" - line 14, col 19)`
