With the latest Version 2.00+ Build 121009, I just tested the manual translate, it works, i.e. translation is saved. No errors. I do not have a google translation api key, so auto translation not tested.
Can you please upgrade to the latest version and re-verify if problem persists?
Plus, I am not sure this is a Chinese language specific problem, if not the Development Forum may be a better place to post your errors.
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