Intigrity Check Error

Hi All,

I am facing one issue like in infoview my dashboards are running fine sometimes & sometimes it gives the following errors.

So for checking i have check the intigrity of universe then i found that in universe also there are few parse condition errors.

Now having Few Queries

1) As this issue starts after basis makes the BO production server down for backup on two days back so something wrong at thr end?

2) As sometimes my dashboards are running perfectly and giving perfect o/p without any issue but sometimes it gives the errors and then webi apllication server aslo restart at backend level.what is the exact cause behind it ?

3) When i have created the new universe on the same BI query and again parse it then it successfuly parce the objects without any error.So is someting wrong with universe?

4)i am having too many reports on that universe what to do?

Regards,

Rohan Ghadi