Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4d69b8681b4a5dd904de955d77019c2b7f85122fc5f8c25cd0804c3b2aeeb28c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^