Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d3e331382984dbbdcf53c7abe24be34e6fc66122e468d34b438e475d6ae61d5f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^