I ran the following function in the Mystique settings > Advanced tab:
And called the function in the index.php file. After running it for 10 times, I suddenly started getting blank page (both in admin as well as in site).
* Disabled all the plugins, but no result.
* Repaired Wp_options table
*Checked that theme is not the problem because I am using the same theme in 1 more multi site without any error.
What should I do now to ensure the site is up again ASAP?