Sen2Cor does not produce files

Hello all.

I am using Sen2Cor (v2.8.0) in command line and it gave me a strange error message with some files from 2016 (working on tiles T34UEG, T34UFG, T34UFF, T35ULB, T35UMB).
It processed well images from April till July, September. However, there is a problem with most images from August and some from September.
However, for example images from 2016-08-25 are processed, while images from 2016-08-28 are not.

Here is an error message I get:

> C:\Users\dfrgt\Documents\0_bandom_s2c>(L2A_Process --resolution 20 S2A_MSIL1C_20161001T092022_N0204_R093_T35UMB_20161001T092024.SAFE )
> Sentinel-2 Level 2A Processor (Sen2Cor). Version: 2.8.0, created: 2019.02.20, supporting Level-1C product version 14.2 - 14.5 started ...
> Old product version 14.2 detected, - will be updated to 14.5
> Processing baseline will also be updated
> Operation mode: TOOLBOX
> Processing baseline: 02.09
> Progress[%]:  0.00 : Generating datastrip metadata
> L1C datastrip found, L2A datastrip successfully generated
> Selected resolution: 20 m
> [Error 183] Cannot create a file when that file already exists
> Traceback (most recent call last):
>   File "C:\Sen2Cor-02.08.00-win64\\Lib\site-packages\sen2cor\", line 495, in main
>     if tile.process() == True:
>   File "C:\Sen2Cor-02.08.00-win64\Lib\site-packages\sen2cor\", line 128, in process
>     if not self.process_resolution(20):
>   File "C:\Sen2Cor-02.08.00-win64\Lib\site-packages\sen2cor\", line 139, in process_resolution
>     self.tables = L2A_Tables(self.config)
>   File "C:\Sen2Cor-02.08.00-win64\Lib\site-packages\sen2cor\", line 174, in __init__
>     os.path.join(self._L2A_QualityDataDir, fnOut))
> WindowsError: [Error 183] Cannot create a file when that file already exists
> Progress[%]: 100.00 : Application terminated with at least one error.

Anyone know the reason? How can I find out which files can be produced with Sen2Cor and which not?

can you go sure that no output product exists? It looks like the script cannot overwrite existing files.

Well, yes. I tried copying files to a new folder, so certainly there are no folders of Level 2 data.