Virtuemart Plugin not exporting correctly

sounds like easy fix, but shouldn't plugin be enabled automatically after reinstall?
I've got more problems:
- special characters are not exported, they are just dropped out, I presume it is same problem with import
- could not import file got this error:

DB function failed with error number 1146
Table 'projekti_mrksa.excom_virtuemart_products_' doesn't exist SQL=INSERT INTO `excom_virtuemart_products_` (`virtuemart_product_id`,`product_name`) VALUES ('19','FILTER ULJA')

please advise

Hello I've updated and tested it but it is not working still, I got strange behavior trying to set new export function

Hello, plugin is exporting data with empty fields, such as product name, see attachment. I do have to mention that site is multilingual, so is virtuemart, perhaps different table names are causing problems
thank you