Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 901deeb5ae779df375b3f1a7b715443c22548c30a5ac9bb8dba7010c2dfc52ad:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^