Error in application twoday

java.lang.RuntimeException: Error retrieving Node: java.lang.RuntimeException: Error retrieving Nodes: java.sql.SQLException: (conn=19977033) Disk full (/tmp/#sql_49b_0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") (/usr/local/twoday/HelmaTwoday/helma-1.5.x/../twoday/code/Site/actions.js#296)