after upgrading wordpress my blog STOPPED WORKING automatically
Now You See It; Now You Don’t
It is a common scenario: you do a one click WordPress upgrade and your blog disappears.
Usually, it is not the fault of WordPress, more likely it is some plugin that is incompatible with the latest version of WordPress.
WordPress Plugin Incompatibility
However, you you then need to work out which plugin is causing the problem. So you deactivate the all your plugins, then activate them one at a time until you find which one is causing the problem.
Okay an hour has passed – it was not the ‘one click’ experience that was promised.
One Click WordPress Upgrades Are Not Guaranteed
In fact it was was never a promise of one click: you did have to acknowledge a disclaimer such as:
I have read the above notes, and understand that XXX cannot be held liable for any data loss caused by this upgrade. For more information, review the XXX Terms of Service Agreement
Maybe you would like to know how to update wordpress reliably and have no risk of data loss?