Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 84b3526b4e0b82ea3548b42d69a24c51ce01edb6dfddaf7bbb861736a0041b89:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^