Redux actions not showing in redux devtools


i posted this problem 2 weeks ago but was having a fatal error uploading to github. i have included the github repo at the bottom but its not in client and server folders.
i have an error that when i click on register , the redux devtools supposed to show REGISTER_SUCCESS and LOAD_USER but im sure that im missing something very small in my code.

this is the error pic:

and this is the github repo link:

please assist as i have to finish this project to apply for an internship.