Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d878f5d3d51026760ba35ca1b15c1f4739c9c77fa4600f6b9160004dbfbac24f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^