Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8afc26daf63afa6747d23698da9e3294b88d8c6ded637b459ad671560e30bfab:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^