Error: too many attached databases - max 0

[cbk1994]

When trying to use the "VACUUM" command on a SQLite database, I get this error. There are no open transactions. There are no databases attached (confirmed with a PRAGMA database_list)

PHP Code:

1 rows returned
|file                                                    |name|seq|
-------------------------------------------------------------------
|/home/graal/developer/accounts/cbk1994/databases/main.db|    |0  |