Error in thread 22 (Recursive monitor pump, [ ~recursive-monitor~ pump-thread ]):

Generic word monitor>> does not define a method for the word class.
Dispatching on object: monitor-disposed

(U) Quotation: [ set-namestack init-catchstack self quot>> call -> stop ]
(O) Word: pump-loop
(O) Word: pump-step
(O) Method: M\ object monitor>>
(O) Word: no-method
(O) Method: M\ object throw
(U) Quotation: [
        63 special-object error-thread set-global
        continuation -> error-continuation set-global rethrow
    ]