Registration failure messaging is extremely unhelpful

[KairuByte]

Describe the bug
Any error registering seems to simply state "Server Responded: Please check the server logs for more details." which is out of the ability of most users. In this specific case, it was that the user had already registered with that same email.

To Reproduce
Steps to reproduce the behavior:

1. Register a new account
2. Register another new account with that same email
3. Unhelpful server response.

Expected behavior
Tell the user what's up.

Screenshots
Reported by an end user, this is the best I have:

In this case server logs had a much clearer answer: Key (email)=([snip]) already exists.

Additional context
I understand the potential want for security through keeping registered addresses secret, but this really just adds frustration to the registration process.

[Alfagun74]

We decided providing a more detailed error here would be the best for everyones sanity

[Alfagun74]

should be fixed with server 12.0.0

[Alfagun74]

spoiler alert: error still appeared when the first user was deleted. Fixed in the next version.