threads[free_index].Run ( [=]//,a,bot1,result_mode, stat_group_id]
	{
		VectorMap<String, double> params2 = pick ( params ); //line 1717
//		wait_until.store ( 0, std::memory_order_relaxed );
	
		execute_bot_in_background ( bot1, a, pick ( params2 ), result_mode, stat_group_id );
	
	
	} );

main.cpp(1717): error C2280: 'Upp::VectorMap<Upp::String,double>::VectorMap(const Upp::VectorMap<Upp::String,double> &)': attempting to reference a delete
    d function
d:\upp-mingw-11873\upp\uppsrc\core\Map.h(237): note: compiler has generated 'Upp::VectorMap<Upp::String,double>::VectorMap' here
d:\upp-mingw-11873\upp\uppsrc\core\Map.h(237): note: 'Upp::VectorMap<Upp::String,double>::VectorMap(const Upp::VectorMap<Upp::String,double> &)': function was implicitly delet
    ed because a base class invokes a deleted or inaccessible function 'Upp::AMap<K,T,Upp::Vector<T>>::AMap(const Upp::AMap<K,T,Upp::Vector<T>> &)'
        with
        [
            K=Upp::String,
            T=double
        ]
d:\upp-mingw-11873\upp\uppsrc\core\Map.h(215): note: 'Upp::AMap<K,T,Upp::Vector<T>>::AMap(const Upp::AMap<K,T,Upp::Vector<T>> &)': function was implicitly deleted because a da
    ta member invokes a deleted or inaccessible function 'Upp::Index<Upp::String>::Index(const Upp::Index<Upp::String> &)'
        with
        [
            K=Upp::String,
            T=double
        ]