DB Error: Disk full (/tmp/#sql-temptable-419-14dfa8d-47f8b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")

DB Error: Disk full (/tmp/#sql-temptable-419-14dfa8d-47f8c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")