Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 49abde4fd4d4a54654921f9bdd3da34a0686d1babf8cf416c9ccf39e7fddb51f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^