opened
hunjixin
username_0
```
DealCid                                                      DealId  Provider  State                          On Chain?  Slashed?  PieceCID                                                          Size       Price             Duration  Message
bafyreiauhp6wlf2w7rjivkzioj7eaknw52gjtxrl45beacny2wz5wllrfm  0       t010399   StorageDealError               N          N         baga6ea4seaqdvsikcnwpbmzkbnag3ila7kywgus23wg2prewrq5jlwl6bg7v6mi  1.984 MiB  0.0003140655 FIL  628131    adding market funds failed: estimating gas limit: message execution failed: exit 16, reason: balance to add must be greater than zero (RetCode=16) 
```

error occur in ensurefunds while make a deal in client, if you addbalce to market before, will got a zero to add market ,  maybe change fsm in market to skip ensurefunds will work if have enough available balance in market
balance to add must be greater than zero 
issue