Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> adcebe5db9b970ded22abadbb8794c66785e00d51912ad68e5624bd3d06b3a80:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^