Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1b65f83734197909dcbbe69db72930f8ab44323c3b4c21dfd59ad2519cadbc88:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^