Hi Josh,
I had backup the proyect study, so, I deleted the current study and created a new study from the study I had saved before upgrade.

Now, The platform and the study proyect is working fine. I need to upgrade to the 16.3 version because I made a R mardown report, and I need that the sistems creates a word document with this report, and someone in the support team told me that this issue was solve in the new version 16.3.

I don't know what Iam going to do, Now I am afraid that everything broke again if I tryied to upgrade again.
Hilaria