Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 145e933251bae9a6d0267b2a0b76808a3a0a5681f4cf12316e73d07f722fcf85:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^