Error: An item with the same key has already been added. Key: s

SOLUTION:

I had to do the procedure of restarting all the ids by cutting and pasting all the activities from all the flows that prevented the system from running;

Regarding the error:
“Run Local Triggers: The .local\generated\Triggers.Generated.xaml workflow cannot be found. Make sure that it is part of the project” I had to remove all flows that had an argument with a pre-defined value: for some reason UiPath removed this and the flows were giving errors…

Thanks to everyone for trying to find a solution…