Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 28b6d520c721ddf1f4f21ab45c09708da3fb5889bd57e3dba17b901c58ba04ec:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^