I installed in module and plugin, and has not appeared no error message , but in the backend module appears wrong. When I edit the new module joomla , no button does not appear. See attached image.-->I can not attach a picture
I have the version of Joomla 3.4.0 and Virtuemart 3.0.6

I have seen the following error message appears on the title page:
Error: 1146 Table 'database.ajz_virtuemart_categories_' doesn't exist SQL=SELECT c.`virtuemart_category_id`, l.`category_description`, l.`category_name`, c.`ordering`, c.`published`, cx.`category_child_id`, cx.`category_parent_id`, c.`shared` FROM `ajz_virtuemart_categories_` l JOIN `ajz_virtuemart_categories` AS c using (`virtuemart_category_id`) LEFT JOIN `ajz_virtuemart_category_categories` AS cx ON l.`virtuemart_category_id` = cx.`category_child_id` WHERE 1 GROUP BY virtuemart_category_id ORDER BY category_name ASC