Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c57b7713fd9ca49066c107ce108f56fa09aa897486960bb96c6e3af1277ad140:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^