NC14.0.1 & federatedfilesharing 1.4.0: "App is not compliant"

[Sanookmakmak]

occ app:check-code federatedfilesharing

Analysing /var/www/html/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php
 1 errors
    line  380: OCP\App - Static method of deprecated class must not be called
Analysing /var/www/html/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php
 3 errors
    line  197: Util::isValidFileName - Method of deprecated class must not be called
    line  215: OC_Util - Static method of private class must not be called
    line  759: OC_Util - Static method of private class must not be called
Analysing /var/www/html/apps/federatedfilesharing/lib/Notifications.php
 1 errors
    line  123: OC_Hook - Static method of private class must not be called
App is not compliant

What does this mean?
Thank you!

[nextcloud-bot]

GitMate.io thinks possibly related issues are #11560 (NC14.0.1 & Accessibility 1.01: "App is not compliant"), #11561 (NC14.0.1 & dav 1.6.0: "App is not compliant"), #10429 (All contacts disappears after 4.0.0 Beta 1 update), #2294 (App Store missing on 10.0.1), and #6028 (Missing icons in Files app after 12.0.1 upgrade).

[MorrisJobke]

Thanks - we will fix it once we do some major refactoring. 👍