Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e0ae7ad13aa7ae834e88fce2527fd649045dce84cb5556842bea2c4f602758f1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^