DB Error: Can't create/write to file '/tmp/#sql_1ec2_0.MYI' (Errcode: 28)

I have installed OJS system and it was working well, thanks to its designers. But recently I have faced with this errer, “DB Error: Can’t create/write to file ‘/tmp/#sql_1ec2_0.MYI’ (Errcode: 28)”, when I click on Journal Manager.
what can I do to overcome this problem?
Hamed Tirandaz

This is a MySQL error, so it is a bit out of scope for this forum. You might want to try searching on StackOverflow. Here is one hit that seemed relevant: