Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> aad0357c60944bcddde8f9f7ac147a1a53498dfc72f000acff30d2aba0917346:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^