Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 59e3d603ca44af10ada35f94c63c01c8fc2619ab2db6140395d94a4bfbaf8394:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^