Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8ad3ffebb79f83893156f65276deeb3b0400a8b0993db2f23d1f801121322328:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^