  We consider the nonlinear system $c_1p_1^d +c_2p_2^d + \dots + c_s p_s^d = 0$
with $c_1, c_2,\dots, c_s\in\mathbb Z$ being nonzero and satisfying $c_1 +c_2 +
\dots + c_s = 0$. We show that for $s\ge 2\lfloor \frac{d^2}2\rfloor+1$ and
$c\in\left(1, 1+c(d,s)\right)$, if the system has only $K$-trivial solutions in
subset $\mathcal{A}$ of Piatetski-Shapiro primes up to $x$ and corresponding to
$c$, then $|\mathcal{A}| \ll \frac{x^{\frac1c}}{\log x} $$\left(\log \log \log
\log x\right)^{\frac{2-s}{dc}+\varepsilon}$.
