Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 291431a0448f2105a8ce427e15ab6052050128a539df652d0864fdeae9284c79:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^