Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a94bc3418ffb73d6250eccc07b5d8e0a9dc5342c15ba2922773af2fcf318e14a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^