Hello,
I Installed a fresh joomla and Virtuemart and the german language, when i switch to german on joomla and go to Virtuemart main page on the backend i get this error:
SQLSTATE[42S02]: Base table or view not found: 1146 Table '.wl4g3_virtuemart_vendors_de_de' doesn't exist
I checked on the database there is no table with de_de how to soolve that.. it was a fresh installation.
Did you configure the language settings in VM configuration > Shop tab > Language settings?