Fix bug in Ethereum contract written using solidity 4

Job ID: 33375782

Budget: $30 – $250 USD

Fix bug in Ethereum contract written using solidity 4

The contract used solidity 4. Burn() did not use safe Math for the balance change, and so had an underflow() bug.

Only bid if you understand how to fix this bug. The contract is already deployed.
Related categories: Solidity