A copyright owner using Content ID claimed some material in your video.
This is just a heads up Don't worry. You're not in trouble and your account standing is not affected by this.
There are either ads running on your video, with the revenue going to the copyright owner, or the copyright owner is receiving stats about your video's views.
Video title: La Casa de Mickey Mouse En Español 2015
What's next? If there are no problems, you don't need to take any action. You don't need to delete your video.
If something went wrong and the copyright owner or our system made a mistake, we have a dispute process. Only use it if you're confident you have the rights to use all the content in your video.
Why are we sending this? We take security very seriously and we want to keep you in the loop on important actions in your account. We were unable to determine whether you have used this browser or device with your account before. This can happen when you sign in for the first time on a new computer, phone or browser, when you use your browser's incognito or private browsing mode or clear your cookies, or when somebody else is accessing your account.
Best, The Google Accounts team
*The location is approximate and determined by the IP address it was coming from.