Sql error help

[den4is]

Hey, Why do i got a error SQLITE ERROR sqlite_exec: UPDATE `players` SET `online` = 0 database is locked?
And the server is kinda freexing so i can't restart it or shutdow it's kinda lagg:S
And sometime the server just freezes :S ALso it's lagging and then i need to restart

I don't know why and how the databas is closd or locked and it's being error...

Please help

When the server is going to save it's like freezing and then i need to press CTRL + ALT + Delete to turn it off
and the server is getting
Exception message: The following errors were encountered while refreshing schema:

The database file is locked
The database file is locked
Exception class: Exception
Date/Time: 2009-03-13 21:56:13.284

the database is just begin locked alltime ..

[13/03/2009 22:16:10] SQLITE ERROR sqlite_exec: BEGIN; cannot start a transaction within a transaction
[13/03/2009 22:16:11] SQLITE ERROR sqlite_exec: BEGIN; cannot start a transaction within a transaction
[13/03/2009 22:16:11] SQLITE ERROR sqlite_exec: BEGIN; cannot start a transaction within a transaction


[13/03/2009 21:31:19] Lua Script Error: [Spell Interface]
[13/03/2009 21:31:19] in a timer event called from:
[13/03/2009 21:31:19] data/spells/scripts/custom/reals.luanCastSpell

[13/03/2009 21:31:20] luaDoCombat(). Creature not found

[13/03/2009 21:31:20] Lua Script Error: [Spell Interface]
[13/03/2009 21:31:20] in a timer event called from:
[13/03/2009 21:31:20] data/spells/scripts/custom/reals.luanCastSpell

[13/03/2009 21:31:20] luaDoCombat(). Creature not found

[13/03/2009 21:31:21] Lua Script Error: [Spell Interface]
[13/03/2009 21:31:21] in a timer event called from:
[13/03/2009 21:31:21] data/spells/scripts/custom/reals.luanCastSpell

[13/03/2009 21:31:21] luaDoCombat(). Creature not found

[13/03/2009 21:31:22] Lua Script Error: [Spell Interface]
[13/03/2009 21:31:22] in a timer event called from:
[13/03/2009 21:31:22] data/spells/scripts/custom/reals.luanCastSpell

[13/03/2009 21:31:22] luaDoCombat(). Creature not found

[13/03/2009 21:31:22] Lua Script Error: [Spell Interface]
[13/03/2009 21:31:23] in a timer event called from:
[13/03/2009 22:50:09] SQLITE ERROR sqlite_exec: database disk image is malformed
[13/03/2009 22:50:09] SQLITE ERROR sqlite_exec: database disk image is malformed

WHAT THE HELLL IS THIS ? PLEASE ANSWER