Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d1c098137e0e3e0f8e6563a6434cb035f35295799a4f55a9d1076180c0b4e78c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^