About a month ago, I claim LBTC by importing a private key into an LBTC Wallet 0.0.8 client. Some time ago, the client began to issue a message Server is lagging" at startup and I couldnt see my funds. Today I downloaded the updated client LBTC Wallet 0.1.1, imported the same private key into it, but my balance turned out to be zero. What is the problem?