ES file explorer has been denied permission for an interactive shell
I can suggest a solution for this....

As I was facing the same issue regarding the Permission Denied For ES Explorer

Go To KingUser Application in your Device (App available after root), you will find the list of applications which are in Allow / Deny state

Here, you will find the ES Explorer (must be in a Deny State..)

Change it to "Allow" and Go To ES Explorer and change the Option "On" for Root Explorer...