Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b311fc2728c554c795f88b3c443c24c9542d25c9f1ab4fc45b5f2ec9d05fd294:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^