As Vladimir Kuklin said the problem was that 5.0.2 package does not contained api-paste.ini and it was not overwritten by puppet when doing rollback. Now all packages in 6.x contain this file.
As Vladimir Kuklin said the problem was that 5.0.2 package does not contained api-paste.ini and it was not overwritten by puppet when doing rollback. Now all packages in 6.x contain this file.