Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9105e101ddb3ce49a0b2bc34432d76dbb7f527032d88d3361ceabb0342bf1f99:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^