Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1227a16f7d0e9660d2f0e7e1e60998c8f7152a812b58aaaa4d8da8d730c905ed:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^