Hi, I'm experiencing this problem.
I just tried to clean the cache.
This problem is seams that you are trying to install a Blog module on Magento. Here I found a solution for this problem.
I hope it will help you in fix this issue.
Thanks
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If my answer is useful, please Accept as Solution & give Kudos
Hi, thanks for your answer.
Actually I didn't understand which is the solution.
If it is adding tables I don't know which ones they are, while I didn't understand the part of "commenting" file.
Could you help me?
Approach to follow:
Hope, this will help you!
Sorry, my fault.
I was talking about extension installation solution.
I already had good luck getting site working again.