Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 976f3596d8002e71dd909532cf5291cf1c8c4500625bb7b816dcc8e43f299a84:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^