Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e071b46a7d111387a77e306d2d4f6e4d703e1a7de5398d98092ae388939792ba:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^