Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e4df288767a0a8a5a984e4cd9b6e04ed03fb03ac2212cceadd10bba16343075f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^