Problem when apply Sen2cor on LTA image

I got the following error when I use Sentinel-2 Level-1C image retrieved from the LTA archive to perform atm. corrections with Sen2cor :

[Errno 2] No such file or directory: ‘…\S2B_MSIL2A_20170819T154859_N9999_R054_T18SUE_20210118T162125.SAFE\GRANULE\L2A_T18SUE_A002368_20170819T160034\IMG_DATA\R20m\T18SUE_20170819T154859_B02_20m_geo.jp2’
Traceback (most recent call last):
File “…\Sen2Cor\Lib\site-packages\sen2cor\”, line 2446, in exportBandList
self.glymurWrapper(filename, band)
File “…\Sen2Cor\Lib\site-packages\sen2cor\”, line 2616, in glymurWrapper
jp2_L2A.wrap(file_L2A_geo, boxes=boxes_L2A)
File “…\Sen2Cor\lib\site-packages\glymur\”, line 868, in wrap
with open(filename, ‘wb’) as ofile:
IOError: [Errno 2] No such file or directory: ‘…\S2B_MSIL2A_20170819T154859_N9999_R054_T18SUE_20210118T162125.SAFE\GRANULE\L2A_T18SUE_A002368_20170819T160034\IMG_DATA\R20m\T18SUE_20170819T154859_B02_20m_geo.jp2’

Can I have your help please?

First off: the error is complaining about an L2A rather than an L1C image.

In any case,
I seem to remember the image names up until ~2018.03.28 had an additional prefix L2A_. So that the end of the path you need might be:

rather than