Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d7690fc4f89d283f2baa0a09f0c1384064c0fedb15b5c71b489b2bc71c577a84:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^