1. Account creation taking too long
Sometimes, account creation from your WordPress may take a bit longer than couple of seconds. Main issue in this case is DNS propagation process.
When you create your account, also new sub-domain youraccount.ladesk.com is created.
To be able to reach it from your server (where your WordPress is installed), DNS record needs to be distributed over the internet. Sometimes, this can take minutes or occasionally an hours to complete. During this time, account may not be accessible to your WordPress, but that does not mean that it is not accessible from your computer.
You'll receive confirmation email with your account login credentials, so you should be able to reach your Live Agent account from your computer. Give it a try. If your account on youraccount.ladesk.com is not accessible, just wait few minutes and then try again refresh your WordPress admin panel and/or login to your account directly on youraccount.ladesk.com
2. Plugin is not in my language
From version 3.0.0 plugin supports translations to any language that WordPress supports. So if you have time and will you can help us to improve it. Make your own translation and send it to us. We'll add it to next plugin release.