I have problem with my ipad mini2

Activation Lock? Do you remember your Apple ID and password? Is this a used device? If not an Activation Lock, how is it locked? More information would help.

See if you can recover the ID/password.

Apple ID - How to find your Apple         An iCloud e-mail address is an Apple ID.

Apple ID - Find

Enter the Apple (iCloud) ID and click Forgot Password.

Apple ID - Manage

Apple ID – Forgot Password

You need to explain what the problem is before anyone can try to help.