Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a3109d3f9c83bd15784841e570f1fe7f4ffd2ea9745fd28cfbe93950e0a147c2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^