Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 99020b272dba019dd3e3ad901106a4a48c68acbcb1b0de4a1decd5dbda5a1c17:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^