CB 1.9 or 2.x?

Hello,
couldn't find another place for some remarks.
My page was build with CB1.9.1 Pro. After instal 2.0.x on a test page I was deep imprest so far and currently I tried to update my live page. Everything could be config properly, be it Joomgalery, uddeIM or JEvents and that regardless of messages on CB plugin Manager. So I could steer everything to my needs but:
1st the profile of the user with the most blocks and articles is a blank page.

2nd, all aricels with the ID 70-79 where deleted in a way that looks like they never exists.

Now I'm back on CB1,9,1 and I will backup the artiles lost during update. But I have to think about the user that get ablank page.
JoMiller

[mod note: please always start new thread with your questions/issues instead of just replying to existing one]

Enable debug mode and maximum error reporting in Joomla global configuration. Then navigate to the users profile. This will help expose any fatal errors present. CB doesn't delete articles. CB Blogs will if the user themselves is deleted, but that can be turned off within CB Blogs > Parameters.

Please note after installing CB 2.x you need to also get all your plugins up to date by following or compatibility table below.

www.joomlapolis.com/cb-20-addon-status

Also never update a live site until you're absolutely sure everything is functioning as expected. Even then always make a backup before updating.