Update your wallet to the latest version (v1.0.0.5).
Older wallets
will no longer be able to connect to the blockchain due to a change in network protocol that came into effect at 00:00:00 (UTC) Jan 2nd 2018.
Do not try to make any transactions if you are still using the old wallet (v0.9.0.2) as they may be lost.Download for WIN, OSX and Ubuntu here : https://mylinx.io/downloadsCompile from source yourself here : https://github.com/linx-project/linx