I ran weblocks clsql demo. Runs OK.
Then I delete a row in Company table that is linked to an employee in 
another table.
Run the employee page (that lists them). 
Got an error  There is no method
 #<STANDARD-GENERIC-FUNCTION WEBLOCKS-CLSQL-DEMO::COMPANY-NAME (1)>
  when called with arguments  (NIL).

The web-server (hunchentoot) running the weblocks demo becomes 
unresponsive, until restarted.

Is this normal? Should'nt it just show empty field, or give a record not 
found runtime error to the user, instead
of throwing an error condtion and halting  the webserver.

Does that mean that unless all parts of a web application are written very 
carefully, making sure that all error exceptions/conditions
are caught, a single runtime error can make the webserver stuck.

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