Magento - blocks not showing problems after installing SUPEE-6788

Hi recently i have install a latest patch from magento  SUPEE-6788 in my magento store.
But it has causes  block not render problem, no  blocks was visible on frontend .

than i troubleshoot it and found that in this patch magento has added a 2 new tables named as

permission_variable   and   permission_block 

• first of all check if these tables exist in your database or not
•  if they exist than check in permission_block table that your  block value exist in that table or not like below

 you will need to be insert your block name in the permission_block  as above
once you will  done with your block name and your blocks should be visible on frontend