Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bfb5ba6212819fea4523b981f6524726f83ffef5ff673eee5ec0a0cea51d0832:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^