18.6 docker版本报错

第一次安装，配置了MySQL数据库，是正常的，第二次启动时候，就报错了。内容如下：

 16:02:46.89 
 16:02:46.89 Welcome to the Easysoft ZenTao 18.6 container
 16:02:46.89 Subscribe to project updates by watching https://www.zentao.net
 16:02:46.89 Submit issues and feature requests at https://www.zentao.net/ask.html
 16:02:46.89 
 16:02:46.90 INFO  ==> Prepare persistence directories.
 16:02:46.98 INFO  ==> Render php.ini with environment variables.
 16:02:47.00 INFO  ==> Render apache sites config with envionment variables.
 16:02:47.02 INFO  ==> MySQL config file exists, skip configure.
 16:02:47.03 INFO  ==> Check whether the MySQL is available.
230830 16:02:47 mysqld_safe Logging to '/data/mysql/logs/mysql_error.log'.
230830 16:02:47 mysqld_safe Starting mariadbd daemon with databases from /data/mysql/data
 16:02:48.04 INFO  ==> MySQL is ready.
ln: failed to create symbolic link '/opt/zbox/tmp/mysql/mysql.sock': File exists