Restored deleted apps via root

[Android Central Question]

Hello there, hope everyone's alright
While uninstalling bloatware I mistakenly deleted my android's file manager (File 7.1.1 com.android.documentsui).

I can't reinstall it via adb because the versions I download don't match the signature of the allegedly deleted file.
Is there a way in which I can absolutely remove every trace in order to have it accept the new apk, or that being impossible, to restore the former file?

Thanks in advance

 

[G789456]

Also, for whatever it's worth: phone is a Motorola E4 1766 Sprint