text messages from the future Y2KX issue

Hello all, I am very new to doing anything with modifying my phone. I am an extreme beginner. I am having this same issue. I think I am having an additional one as well. I sent a text earlier yesterday around 7:30 p.m. or so and I the person I sent it to is still getting the message every hour or so. Also I am not getting text messages from anyone even though I am able to send out. Can anyone please help me.

I am using Mightyrom War and I have a Sprint phone.

Thank you,

James