I have no idea what problem you are trying to solve, or what code you ran. However, as a first step, please follow the advice in CVXQUAD: How to use CVXQUAD's Pade Approximant instead of CVX's unreliable Successive Approximation for GP mode, log, exp, entr, rel_entr, kl_div, log_det, det_rootn, exponential cone. CVXQUAD's Quantum (Matrix) Entropy & Matrix Log related functions , then show us the results.
BTW, I have no idea what SCA is (Side Channel Authentication?), nor I suspect do many other forum readers.
You have provided so little information about your problem that I don’t think forum readers can provide much, if any, advice.