Error messages should be handled here and not passed on to the enduser in their raw state.
For example:
`!trans en Guten tag` will return the error `"PLEASE SELECT TWO DISTINCT LANGUAGES"`
`!trans dn Guten tag` will return "'DN' IS AN INVALID SOURCE LANGUAGE . EXAMPLE: LANGPAIR=EN|IT USING 2 LETTER ISO OR RFC3066 LIKE ZH-CN. ALMOST ALL LANGUAGES SUPPORTED BUT SOME MAY HAVE NO CONTENT"