Membership Premium activation error

Respected Sir,
I am getting these errors after activating the Membership Premium.

WordPress database error: [Table 'sniperfo_latestdb.wp_m_coupons' doesn't exist]
SELECT * FROM wp_m_coupons WHERE couponcode = ''

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/sniperfo/public_html/wp-includes/wp-db.php:1053) in /home/sniperfo/public_html/wp-content/plugins/jigoshop/classes/jigoshop_session.class.php on line 20

I check also there is no table: wp_m_coupons in my database. How to create that table means what are fields for it.

Thanks.