Program call loop; check the program call logic.

Cause:

A loop exists in subprogram calls.

Troubleshooting:

Check whether subprogram calls form a loop, meaning A calls B and B calls A.

Solution:

Modify the program call logic.

Case sharing:

The program0 program is as follows:
Progcall（program1）
The program1 program is as follows:
Progcall（program0）
Loading program0 now reports error 3813.