Scheduler stopped working suddenly

Hi,

I used the scheduler card now for some months and it workerd perfectly.
All of the sudden (maybe aftern an update) it stopped working .
Scheduler card is active, but switch is not switched.
In the logs i see the following:

Exception in async_timer_updated when dispatching 'scheduler_timer_updated': ('adf250',) Traceback (most recent call last): File "/config/custom_components/scheduler/switch.py", line 249, in async_timer_updated await self._action_handler.async_queue_actions( File "/config/custom_components/scheduler/actions.py", line 259, in async_queue_actions for queue in self._queues.values(): RuntimeError: dictionary changed size during iteration
Exception in async_timer_finished when dispatching 'scheduler_timer_finished': ('adf250',) Traceback (most recent call last): File "/config/custom_components/scheduler/switch.py", line 275, in async_timer_finished await self._action_handler.async_queue_actions( File "/config/custom_components/scheduler/actions.py", line 259, in async_queue_actions for queue in self._queues.values(): RuntimeError: dictionary changed size during iteration

Any Idea?