Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7a9f4c736bc6f83a152b5a15f5c05b734fdeea3b088fd87c391f2002998907b3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^