I can not save a record in Base

Hi all,

Win8 preinstalled on ultrabook, bought in US, LibreOffice Base 4.2.7., downloaded from original web site. Java, the last version reinstalled.
I made a simple base, 1 table and 1 form. But I can not fill it with data. Each time I press “save a record” buttom I have a message " error inserting the new record, Java.lang. Illegal Argument Exception". As well it is impossible to create a new record when working directly with a table. I have the same message. Key field is “auto”.
I have field names and some data in Russian. Can it be a reason ? As far as I know, Base supports this language.
Maybe some settings are to be checked, but which?
Pltase, help.

Thanks in advance
Yury