Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 989aca5b3836b0ba1a52be646de20a22f858041cba9f2efe57b230199db2c38d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^