Database error
From ProjectWiki
A database query syntax error has occurred.
This may indicate a bug in the software.
The last attempted database query was:
(SQL query hidden)from within function "SpecialRecentChanges::doMainQuery". Database returned error "1021: Disk full (/tmp/#sql_48a5_0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") (localhost)".