Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4bbe93a6acf20a368e0e81f941159a40b30726c4f3ac2e12e412c97a1a9fa07c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^