Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d3321f89148e45b49dbd240918c444d0d49e425b6d0743dc25e763eba8f7773f:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^