Server errors are normally issues with the network or bluetooth
If you've got Limbo working but suddenly get a server error, the most likely reason is that your network is preventing the Limbo app from connecting through the internet to our Limbo system.
First, check your bluetooth is on to ensure that everything is connected locally.
Secondly, try a different network (wifi, or mobile phone network) and see if that fixes the issue.
If you have a WiFi network with security settings, it could be preventing Limbo from connecting. Normally in your broadband settings you can 'whitelist' connections - ie allow them regardless of security settings. How to do this will depend on your internet provider but try whitelisting:
*.viv.co
viv.co
auth.viv.co
awa.viv.co