Trac error - database disk image is malformed

One of my trac page got the error message "database disk image is malformed"

"underlying Trac DB is in serious trouble, may corrupted" - Ticket #6347

How I fix:

sqlite3 trac.db .dump | sqlite3 trac2.db
cp trac.db trac.broken.db
cp trac2.db trac.db