How to convert L1C data to LA2 data and adjust parameters

Hi, everybody. I want to convert the L1C data of Sentinel-2 to LA2 data. Although the sen2cor plug-in can be invoked at the command prompt, it is not known where to adjust the radiometric calibration and atmospheric correction parameters. I then used SNAP software directly to load the Sen2cor plug-in and tried to implement the callback, but ran with the following error. I didn’t find a way and I don’t know how to solve it .I would like to consult you. Thank you so much!