Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 80177f7630e9e624978642ce877baa721700b229762da4f333cbdf49a8d31420:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^