We recently had a client run into an issue where they were unable to open the Contact area of the SalesLogix LAN client. When they attempted to navigate there, they would receive the following:
It turns out that somehow a Contact Process had been created with a bad value in the SUSPENDED column. in the PROCESS table, the SUSPENDED column is supposed to store either a 0 or 1, but one record had a NULL value.
Running the following SQL statement fixed the issue:
update process set suspended = 0 where suspended is null