Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a7f43874d5d2b3e8153e040a609a1ce44ca9d726cccfa7b11a901439318ec05b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^