Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> de5c68682d5347f61cb69f3efb640969c5a7206349a3632974e36eee653f5e7d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^