There is a line of code:
Context()->strings->add(None=>{},"No solution"=>{None});
with an anonymous hash reference {None} that only has the bareword None in it, not a key-value pair. I would suspect that is the source of this error message.
Context()->strings->add(None=>{},"No solution"=>{None});
with an anonymous hash reference {None} that only has the bareword None in it, not a key-value pair. I would suspect that is the source of this error message.