Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 644f960b7a1d6973a6c3ade28430efff5ca4cb3825b6f2db39a606a273d1f0ec:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^