fix: invalid keyshare on startup (#110)

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Author: mpetrun5

app/app.go

@@ -163,7 +163,7 @@ func Run() error {
 
 	keyshare, err := keyshareStore.GetKeyshare()
 	var mpcAddress common.Address
-	if err != nil {
+	if err == nil {
 		mpcAddress = ethereumCrypto.PubkeyToAddress(*keyshare.Key.ECDSAPub.ToBtcecPubKey().ToECDSA())
 	} else {
 		mpcAddress = common.HexToAddress(solverConfig.ProtocolsMetadata.Sprinter.MpcAddress)