Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9bed85c9679b4919ce1e8736c33ebfb9c0b51e92decbc2e138a9ba1e96aba3d1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^