Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 49de588cdaff3767505d70f24e14c5dadc1649bb47784d2d7a86f848645a3b90:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^