Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7bd91d9dbade306592e75c2a6f754f21891d2c80672a627c5625e503420d9c8a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^