There has some errors:
There was an issue during installation: 0: AppexBundleMissingClassOrStoryboard (Appex bundle at /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.uEqRWX/extracted/Payload/Taker.app/PlugIns/NomoWidgetExtension.appex with id com.blink.academy.nomo.2CN8J65VJ5.NomoWidget does not define either an NSExtensionMainStoryboard or NSExtensionPrincipalClass key with a string value in the NSExtension dictionary in its Info.plist). It is possible that installation was completed successfully, but maybe not. Please press OK to re-install, or Cancel to stop.
I have tried to remove app extentions, and it was installed. But when I run this app, it can't be opened.
What should I do next?