Led strip don't turn off

Hello, I bought a led strip but I’m facing two issues, maybe one is a consequence of the other.
My strip do not turn off, even when I press the physical button or in the app, instead of turn off, it changes to a red color. The only way to turn it off is to pulling out of the energy.
The second problem is that when I select a blue color, it not changes to blue, it looks like a purple. So I believe that the problem is that the red color is always on, even when the led strip should be off.
The firmware is 1.4.2_0049 and my server is United States.
Thank you and I hope someone can help me.