Здравейте, аз получавам 75/100 от два часа се мъча и не мога да си открия грешката/грешките ако може малко помощ ?

function solve() {

    const div = document.getElementById('container');

    const addButton = document.querySelector('button');

    const pets = document.querySelectorAll('ul')[0];

    addButton.addEventListener('click', function (e) {

        e.preventDefault();

        let name = div.querySelectorAll('input')[0].value;

        let age = div.querySelectorAll('input')[1].value;

        let kind = div.querySelectorAll('input')[2].value;

        let currentOwner = div.querySelectorAll('input')[3].value;

        let number = parseInt(age);

        if (name !== '' && age !== '' && kind !== '' && currentOwner !== '' && typeof (number) == 'number') {

            let li = document.createElement('li');

            let paragraph = document.createElement('p');

            let ownerSpan = document.createElement('span');

            let buttonOwner = document.createElement('button');

            paragraph.innerHTML = `<strong>${name}</strong> is a <strong>${age}</strong> year old <strong>${kind}</strong>`;

            ownerSpan.textContent = `Owner: ${currentOwner}`;

            buttonOwner.textContent = 'Contact with owner';

            li.appendChild(paragraph);

            li.appendChild(ownerSpan);

            li.appendChild(buttonOwner);

            pets.appendChild(li);

            for (let i = 0; i < div.children.length; i++) {

                div.children[i].value = '';

            }

            buttonOwner.addEventListener('click', function (e) {

                e.preventDefault();

                let target = e.target.parentElement;

                e.target.remove();

                let newDiv = document.createElement('div');

                let takeButton = document.createElement('button');

                takeButton.textContent = 'Yes! I take it!';

                let input = document.createElement('input');

                input.placeholder = 'Enter your names';

                newDiv.appendChild(input);

                newDiv.appendChild(takeButton);

                target.appendChild(newDiv);

                takeButton.addEventListener('click', (e) => {

                    e.preventDefault();

                    if (input.value !== '') {

                        let adoptedPets = document.querySelectorAll('ul')[1];

                        let listOfAdoptedPets = document.createElement('li');

                        let checkedButton = document.createElement('button');

                        let newSpan = document.createElement('span');

                        newSpan.textContent = `New Owner: ${input.value}`;

                        checkedButton.textContent = 'Checked';

                        let newParagraph = document.createElement('p');

                        newParagraph.innerHTML = paragraph.innerHTML;

                        listOfAdoptedPets.appendChild(newParagraph);

                        listOfAdoptedPets.appendChild(newSpan);

                        listOfAdoptedPets.appendChild(checkedButton);

                        adoptedPets.appendChild(listOfAdoptedPets);

                        e.target.parentElement.remove();

                        checkedButton.addEventListener('click', function (e) {

                            e.preventDefault();

                            adoptedPets.removeChild(listOfAdoptedPets);

                        });

                    }

                });

            });

        }

    });

}