I created the first category in DMX, and I think it caused IIS to crash. Immediately after i stored a new category, my DNN installation became unavailable until I restarted IIS. The same thing happens when I store new documents in DMX, IIS crashes and has to be restarted.

When I look at the Category first created it seems that the category contains itself as a subcategory, and the subcategory contains itself, and so on.

The DMX_Categories table looks like this:

id    Name_old    ParentId    PortalId    ViewOrder
0     NULL           0              0             1

It looks like the record is the parent of itself, which explains the loop. But not why IIS crashes.

Any suggestions/explanations?