Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
  --> 09c19da61fd763bb61b97bbdb646af1ac616afa1b2ace610c439c6fd026cda7b:22:11
   |
22 |         if tryBM(tokenInVault: flowTokenVault) {
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: underflow
  --> 09c19da61fd763bb61b97bbdb646af1ac616afa1b2ace610c439c6fd026cda7b:92:24
   |
92 |     let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^