Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 473b195f5be8a28a91c5bc0c2e87aab7c589c6e25205f20308eff5095704b5bf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^