i missed up with cacls command , i can't access my folder anymore

Hi
i followed a tutorial on how to make folders unacessible and undelitable using cacls command
everything works fine until today i was unable to access a folder in D drive , D:\mouad

"
C:\Windows\system32>cacls D:\mouad /e /c /g %username%:D
Arguments non valides.
REMARQUE : Cacls étant désapprouvé, utilisez Icacls.
"

anyway i can get full access too my folder again ? please ?