Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cc68963d525ea186de437a83a4ffce26d1f72fa9a407c2988e9f95075dabae65:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^