If you can't access the pixiv Sketch app, you see the maintenance page, or can't see anything after access, check below.
▼If there is a problem and we are undergoing maintenance
We will let you know on the official pixiv Sketch X account.
We will also keep you informed on the situation and when the service will be back up, so check the link below.
https://twitter.com/pixivsketch
▼If you saw the announcement about the service being restored, but the maintenance page was still displayed or you still couldn't access the app
On the iOS app
If the pixiv Sketch app is running, force close it and open it again.
Check this link to see how to close an app https://support.apple.com/ja-jp/HT201330
On Android app
If the pixiv Sketch app is running, force close it and open it again.
To see how to close an app, check your device instructions.