Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ca2381872c91fe065cf1cae6aa09aa27d99bdd14b40840a9e0fd14d795d99dc8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^