Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 65729a52b9c30dadde91f60e184ad915a577985fabec1b59749517837473e064:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^