Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> aed0c878d1323c0a7e138a88bca5bfba45c6b141d3cdc34a205219883c2c668e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^