Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 14261f5c5768b4c0ac372243af47b389a9667408311a4d9fcab80e836c9f992d:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^