Error when choosing a car

Hi there. I have problem because when in sandbox i choose the car to improve it, game crashes (you can think it lagged, but game freezes and error shows at desktop). Text of error:
- Code:
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Lua Error:
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tolua++ dbcall failed!: [string "--shared\functional\SANDBOX_DATA\CCarCalculat..."]:105: attempt to index local 'enginePlacement' (a nil value)
You can CTRL+C on this to report it.
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OK
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