E10_2Ddisc2C_hyperElastic.m

Hi, it is a wonderful toolbox. I have a  problem. It told me 'the function E10_2Ddisc2C_hyperElastic can not be recongnized' when running the file GaussNewtonLDDMM. In fact, I can not find the function    **_E10_2Ddisc2C_hyperElastic.m_**  in the FAIR toolbox.