Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b2f96e91144f0e8a0c380a08cbd52816c948242f4c46a2de7fc35b79ef5523ea:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^