Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fd5e213635097f7c62867d533c7a614a54c21473d50a4711a82f3f0392cdf3bc:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^