Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bf72c3e59e81460fbf94b8eefcf2c990c4718bbd9f5217c01d5967966d4f4dfe:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^