Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ed5f39795c029399634325d96062e933c4d5df124a19292c662796f9546f5349:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^