Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 563b885d51c5545e961d7c9db9b4934155cafc75ad83e1f63774ae13b2de3436:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^