How to solve this errors [ REQUEST_BUSY ] and cannot unpack non-iterable NoneType object face recognition demo

[Balu2311]

[ REQUEST_BUSY ]
def enqueue(self, input):
self.clear()

    if self.max_requests <= self.active_requests:
        log.warning('Processing request rejected - too many requests')
        return False
 
   self.exec_net.start_async(self.active_requests, input)
  
  self.active_requests += 1
 return True

[vladimir-dudnik]

cc @akorobeinikov @anzhella-pankratova

[Balu2311]

def enqueue(self, input):
    self.clear()

    if self.max_requests <= self.active_requests:
        log.warning('Processing request rejected - too many requests')
        return False
    try:
        self.exec_net.start_async(self.active_requests, input)
    except:
        self.exec_net.start_async(self.active_requests, input)
    self.active_requests += 1
    return True

[ REQUEST_BUSY ]