Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b4cafdede2ebd64cc1cef7d76b2f643dc7568a9af54a08a062857e6cc5331939:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^