Seems like you mixing front-end and backend.
I see an EXPORT-FUNCTION in your frontend code, right?
export function myGetCurrentMemberFunction(options){......}
Regarding your API-IMPORTS, it seems like you are working on FRONTEND…
import { currentMember } from 'wix-members';
import wixLocation from 'wix-location';
import wixUsers from 'wix-users';
But you do not import your exported backendfunction on your FRONTEND, as i can see…
import {myGetCurrentMemberFunction} from 'backend/xxxxxx.jsw}
BACKEND is not FRONTEND and FRONTEND is not BACKEND.
And why you do not use - - → CONSOLE-LOGs ???
If you would start to use them, you surely would be able to debug your code on your own.