> For the complete documentation index, see [llms.txt](https://tgtaps.gitbook.io/tgtaps-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tgtaps.gitbook.io/tgtaps-docs/faq.md).

# FAQ

- [How to fix "primary page is not configured"?](https://tgtaps.gitbook.io/tgtaps-docs/faq/how-to-fix-primary-page-is-not-configured.md): If you see "primary page is not configured" error, you need to select "primary page" in your bots pages settings:
- [How to create gradient color or background?](https://tgtaps.gitbook.io/tgtaps-docs/faq/how-to-create-gradient-color-or-background.md)
- [How pages background works?](https://tgtaps.gitbook.io/tgtaps-docs/faq/how-pages-background-works.md)
- [How to insert YouTube video in app?](https://tgtaps.gitbook.io/tgtaps-docs/faq/how-to-insert-youtube-video-in-app.md)
- [How to add Play button to Telegram Bot?](https://tgtaps.gitbook.io/tgtaps-docs/faq/how-to-add-play-button-to-telegram-bot.md)