Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a7861f56fe2dc653c97be6b0f7ca5038471d8800f2240385c621dfc55be5749a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^