How to downgrade my PT??

Hi guys, i upgraded my PT 11.2.1 to 11.2.2 and does not work...:( it tries to open a session then closes by itself with error message... another guy was having the same problem and said that: Downgrade!! 11.2.2 is useless.... but if i try to downgrade it says that a new version its already installed and cannot do that...



If i uninstall my Pt to downgrade i'll have to re install all my plugins, am i right??

There's any other way to do that ??:confused:



Thanks guys!!