Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a44c61b8165d7f793093451a39a30419f4e3346d665995ad977bd7669c729510:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^