#slider {

    position: relative;

    width: 100%;

    overflow: hidden;

}

.slides-container {

    display: flex;

    flex-direction: row;

}

.slide {

    position: relative;

    width: 100%;

}

.slide img {

    width: 100%;

    height: auto;

}

.slider-nav {

    position: absolute;

    bottom: 20px;

    left: 50%;

    transform: translateX(-50%);

}

.slider-nav button {

    margin: 0 10px;

}

Uncheck Guild Install in the Installation tab and try again!

Answer source: https://www.reddit.com/r/Discord_Bots/comments/1e6r0ua/private_application_cannot_have_a_default/