Hola, iam Vanessa Balk, Don’t overdo it!
How Can I Fix My Cracked Walls Permanently? [Solved]
Cover the crack with either mesh joint tape or joint compound and paper tape, followed by a thin layer of joint compound, extending about 2 inches on each side of the tape. Allow to dry. Apply a second coat of joint compound, feathered approximately 6 to 7 inches on either side of the crack. Allow to dry overnight.
How to fix a crack in the wall - DIY
This is how to
Why Has Your Wall Cracked? and What Can You Do?
Roger explains why
How to fix a crack in a wall or ceiling - DIY
This is how to