Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bb7a9c3b516f50c998ece45cab357e30a0658d9e2c4b427bd6ac79b5c177cb83:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^