I am getting an error:

1146 Table 'mycustom_zc1.zen_reward_master' doesn't exist
in: [SELECT prp.point_ratio*p.products_price AS reward_points, prp.point_ratio, p.products_price, p.products_priced_by_attribute FROM zen_reward_master prp, zen_products p, zen_products_to_categories p2c WHERE p.products_id='20' AND p2c.products_id='20' AND ((prp.scope_id=p.products_id AND prp.scope='2') OR (p.products_id=p2c.products_id AND prp.scope_id=p2c.categories_id AND prp.scope='1') OR (prp.scope='0')) ORDER BY prp.scope DESC LIMIT 1;]

Also Admin, Configuration, Reward Points does not exist in Zen Cart Admin screen.

Where did I go wrong?? Can anyone please help me??