Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 31e38269367642a0205092506cbc8809ddde394f467bde07ca0cebb905da9e19:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^