Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d393b2a88baf07aaf61f9aa551379b8139ade385846f623f99976d6eaf48760a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^