Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
  --> abd758e44b6b0dae9207e2873ed25c2c54f8eedcc8f292b49f1a817d2e085544:22:11
   |
22 |         if tryBM(tokenInVault: flowTokenVault) {
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: underflow
  --> abd758e44b6b0dae9207e2873ed25c2c54f8eedcc8f292b49f1a817d2e085544:92:24
   |
92 |     let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^