Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c813ae72d39a1d6ab09ae1e765c74c0489adb4eacfb9a57be47acd71a66cba5b:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^