Help with a serious problem NAV crashes

Okays, I got the xml import done and after I import the purchase invoices in, they dont seems to work properly.

If I delete the line 0 or delete the whole invoice it crashes Navision. it just simply shuts down without warning..

I tryed to make normal purch invoice on the form and then delete it, it does not crash. It only seems to crash if I delete the imported invoices.

I double checked that every required line comes to the table from the import.
But I also tested if I could change a random text column from SQL server. It wont let me change any line or column even the column property is set Editable.
I receive this error from SQL server:

No row was updated.

The data in row xx was not committed.
Error Source: .Net SqlClient Data Provider.
Error Message: Conversion failed when converting the varchar value 'Receive' to datatype int.
Correct the errors and retry or press ESC to cancel the change(s).

Weird is that I havent even touched the Receive columm, also its Boolean field and all its rows are set to zero.


Has anyone hit same sort of problem?