Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5b95d0c6a7a6216c145a6998de23986d193df8b02cd868d336d7f22d7f5ccbdd:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^