Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8dd30531e35aacfbc9722c913dd6d27a7932e3d83337d3aed8fd890c970ccdc7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^