I’m trying to create a simple text based game as a practice.
I created a character with a Vector for the inventory, but when I want to consume the item and remove it from the Vector I get an error: “Expression: cannot seek vector iterator before begin”

This is the character script where I try to consume the item:

    #pragma once
    #include <string>
    #include <Vector>
    #include "Vector2.h"
    #include "BaseItem.h"

    //Character.h
    class Character 
    {
        int type;
        std::string name;
        int hp;
        int mana;
        int power;
        float speed;
        Vector2 position = Vector2();
        std::vector<BaseItem> inventory;
    
        public:
            std::string characterType[4];
            Character(std::string new_name, int new_type);
            void CharacterSetup();
            void TakeDamage(int _damage);
            void Attack();
            void Move(Vector2 _direction);
            void DisplayStats();
            void AddToInventory(BaseItem _item);
            void UseItem();
    
            std::string GetName();
            int GetHP();
            Vector2 GetPosition();
    
        
        private:
            int current_hp;
            int current_mana;
    };

    //Character.cpp
    ...
    void Character::UseItem()
    {
        if (inventory.size() > 0)
        {
            int selectedItem = -1;
    
            std::cout << "--Select your item:n";
            for (int i = 0; i < inventory.size(); i++)
            {
                std::cout << i << " " << inventory[i].itemName << "n";
            }
            std::cin >> selectedItem;
    
            if (!std::cin.good() || selectedItem < 0 || selectedItem >= inventory.size())
            {
                selectedItem = -1;
                std::string dummy;
                cin.clear();
                cin >> dummy;
                std::cout << "--Not such item in inventoryn";
            }
            else
            {
                inventory[selectedItem].ItemUse(*this);
                BaseItem aux = inventory[selectedItem];
                inventory.erase(inventory.begin() + (selectedItem - 1));
            }
        }
        else
        {
            std::cout << "--Inventory empty!n";
        }
    }
    ...

And here is the Item code.

    //BaseItem.h
    #pragma once
    #include <iostream>
    #include <string>
    
    class BaseItem
    {
    
        public:
            BaseItem();
            virtual void ItemUse(class Character& _c);
    
            ~BaseItem();
            
            std::string itemName = "Item";
        protected:
            int value = 0;
    };

    #include "BaseItem.h"
    
    BaseItem::BaseItem(){}
    
    void BaseItem::ItemUse(class Character& _c)
    {
        std::cout << "Used " << itemName << "n";
    }
    
    BaseItem::~BaseItem()
    {
    
    }