java.sql.SQLException: null, message from server: "Host '' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"

Good day ,i am using Camunda 7.15 running on Openshift with MySQL database running on VMware i keep getting error logs: java.sql.SQLException: null, message from server: “Host ‘’ is blocked because of many connection errors; unblock with ‘mysqladmin flush-hosts’”
i am using below hikari configurations
#------------------------------------------------ spring Hitari datasource ---------------------------------------------------#

spring.datasource.hikari.connectionTimeout=30000
spring.datasource.hikari.maxLifetime=0
spring.datasource.hikari.minimum-idle=15
spring.datasource.hikari.maximumPoolSize=30
spring.datasource.hikari.connection-timeout=1000
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://mysql-host:3607/CamundaDb?createDatabaseIfNotExist=true&autoReconnect=true&sendFractionalSeconds=false