Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bbbe0be574c66ecff9da1efbbd5f267490ecbe3025250bd3818dd7ab5ae81ed1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^