Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: underflow
  --> d854d6998212713f80764422abf487c40402b6c1cb4b2848e0ca84064d01f6c8:18:17
   |
18 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^