One or more partitions on your server is out of space or doesn't have enough space to complete this operation. You need to shutdown your forums and contact your host immediately. You or your host will need to find out which partition is low on disk space and either add more space or free up some.
And i really want my site up and running, i don't really understand its fully because i have unlimited space, and this had never happend before.
Please help me fixing this, its really annoying
The error code is 28, that means the same "OS error code 28: No space left on device"
EDIT: i think he means with shutodown is a restart or something