Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 46ee173197cbcca00a23469c2ce172bf9fbcedb42b300b56404045fd522d976d:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^