Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 81a6e9ab9325edf9958024f88190ffc7e984290e45e8fcf534035ea3e0ff22e2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^