Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 23fa02e0774e00ba9d31f2b51ed92970f6700ce64f0a85f56232d7d161cf62fb:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^