@randall It does not look like there is a bulk reactive. I thought you might be able to use the Import Users API, but it looks like it will throw errors on duplicates. Looks like you will have to loop through the users to enable them.
@hershellasagna Other than server error, I got it resolved. I'm now able to login without issues. In the end it was my on-line server set-up. I thought my SSL certificate was set-up but it wasn't. Once it was, it starting working. Thanks again for replying, it definitely got me going in the right direction!!