高手帮我看看这些提示是怎么回事?

edenCC

用添加用户时
vadduser -q 10485760S cax@cccc.cn 8700087
vmysql: error creating table 'dir_control': MySQL server has gone away
vmysql: error creating table 'dir_control': MySQL server has gone away
vmysql: sql error: MySQL server has gone away
vmysql: sql error[3]: MySQL server has gone away
vmysql: sql error[2]: MySQL server has gone away
Failed while attempting to add user to auth backend
Error: no auth connection

删除域名时也有这样的提示,
[root@asc config]# vdeldomain cccc.cn
Warning: Failed while attempting to delete domain from auth backend
vmysql: error creating table 'dir_control': MySQL server has gone away
vmysql: sql error[e]: MySQL server has gone away
Warning: Failed to delete dir_control for asc.bak.cn
vmysql: error creating table 'dir_control': MySQL server has gone away
vmysql: error creating table 'dir_control': MySQL server has gone away
vmysql: sql error: MySQL server has gone away

登陆时总提示用户名或者密码错误.