Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 62c6c83676d4a15daffd407a2db024834922a3e668fd2cb231ba138aa0b25532:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^