처리 중 오류가 발생하였습니다.

처리 중 오류가 발생하였습니다.
이용 중 불편을 드려 죄송합니다.
관련 문의사항은 운영자에게 알려주시면 친절하게 안내해드리겠습니다.

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms. ### The error may exist in URL [jar:file:/home/sherpago/webapps/mro/sherpago-mall.war!/WEB-INF/classes!/com/sherpago/mall/information/category/mapper/ProductCategoryMapper.xml] ### The error may involve productCategory.getLastUpdatedDate ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms.