I just upgrade 6 day ago VB4.0.6 to VB4.0.7 and also upgraded VBseo 3.5.1 to 3.5.2 and before upgraded VBseo i had already backup ALL of my vBSEO Settings and re-import again.
I do not understand why traffic suddenly down from yesterday until now, an average of 10k per day, but today only 2k. Visitors primarily from Google search page, you can tell me why it is happening again