[Andrés]

I got this message when I attempted to update my profile.

Sorry, one of the names you have attempted to use is being rejected.
You may not:

Start your name with a space, a pipe, or a pound mark (hash)
Use an exclamation point, single or double quotes, a semicolon, or a tilde
End your name with a space or a pipe
Have more than one consecutive pipe
Use HTML character representations in your name, such as a non-breaking space.
Use HTML brackets.
Have more than one consecutive underscore
Have more than one consecutive space
Use ASCII control characters
In addition, the board administrator may have restricted high-bit characters.