I'm sorry but It is not clear what the problem is. Take a new photo without the flash, stand next to a window without direct sunlight. I do not know if I am seeing reflections, if the shirt has a white base.
But a basic problem could be that the worker did not apply enough ink, or pre-spreaded the ink into the silk even and smooth.
I am stealing this comment from Cai: "It looks like a white base and either a problem applying the ink or a problem in curing"
A list of problems could be:
The ink is contaminated and do not stick properly (missuse of solvents, old ink)
The operator did not spreaded the ink evenly or did not performed a pre-pass.
The ink is not compatible with the base ink (if there is one)
The ink did not cured properly (solvent related, humidity, temperature)
Wrong mesh, the mesh is too tight for the thickness of the ink.