Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 51da99f0ba8074a6bd03b0d0d7eb1fe595db46f9bd1101173d4efa6e45fc5891:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^