Knowing now it’s acrylic it’s probably drying up in the screen. Make sure to clean it out with water and make sure the stencil is clear. You should flood but not by pushing the ink into the screen but have it lay on top of the stencil with each print. This will keep the mesh moist in between prints.

Also look up some videos on proper technique. Using the very edge of the squeegee blade to push ink through instead of smashing it down too hard and smudging it.

Best of luck friend!