No combat text or log

I have recently been getting a few error messages something along the lines of BlizzardCombatLog and stuff like that. I would assume this is why I have no combat text or combat log. Just wondering what the easiest way to fix the problem would be without uninstalling WoW or addons.

Thanks!

Edit: Forgot to mention the game has also been crashing lately.

This is the error message I keep getting.
----------------------------------------------------------------------------------------------------------------------------------------
Message: ...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:1793: bad argument #2 to 'min' (number expected, got nil)
Time: 09/09/10 15:05:15
Count: 20
Stack: [C]: in function `min'
...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:1793: in function <...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:1788>
(tail call): ?
...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:2957: in function <...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:2168>
...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:3330: in function `CombatLog_AddEvent'
...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:3342: in function <...ace\AddOns\Blizzard_CombatLog\Blizzard_CombatLog.lua:3340>

Locals: (*temporary) = 1
(*temporary) = nil
(*temporary) = "number expected, got nil"