I seem to fix it at
components/com_comprofiler/plugin/user/plug_cmc-newsletterregistration/cmc.php
line 24:
change:
JLoader::register('CmcHelperRegistrationrender', JPATH_ADMINISTRATOR . '/components/com_cmc/helpers/registrationrender.php');
to:
JLoader::register('CmcHelperRegistration', JPATH_ADMINISTRATOR . '/components/com_cmc/helpers/registration.php');