Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b1efa58c0efa3e7c715cd3b002d30d3c6b8df8999e0100fef3e983f7a15261c1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^