Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fb110f4b599284af5bcd66b066f5c986d9ce5eff4bd587a86e98a8735d8bbb4c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^