Getting error: Shapes not aligned, with statsmodels and simple 2 dimensional linear regression

Question

import numpy as np
import statsmodels.api as sm


list21 = [-0.77, -0.625, -0.264, 0.888, 1.8, 2.411, 2.263, 2.23, 1.981, 2.708]
list23 = [-1.203, -1.264, -1.003, -0