Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8b8ea69568f95c16ad246f06d7d987bd48c30342bb90e0a571f419d78df0d02f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^