Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c7ab5a4fdf89d6f5de268e41c3c8ede82d91549adce9ab08e443f11a1151d8ae:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^