Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1920a8f5b714c34d5957ad2f145bf198c5b0eaed9494d0d303820ca0deeeea7f:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^