Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5151227fc3eb63a58de3942d06a265fa2927264ad076da475a2c52e84f5ed175:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^