Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 73dfdd97b54f118edd84c45d93c63005726777d69a506ce1eeb4ef8ff0b189a0:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^