Check if your systems are declared in the scrape engine parameters files
In order to be able to scrape your systems correctly, it is imperative that ARRM can make the association between your system names and the platforms (systems) offered on the engines of scrape.
The association is done via the following files:
%appdata%\Nexouille Soft\arrm\database\systemes_screenscraper.txt %appdata%\Nexouille Soft\arrm\database\systemes_hfsdb.txt %appdata%\Nexouille Soft\arrm\database\systemes_launchbox.txt %appdata%\Nexouille Soft\arrm\database\systemes_mobygames.txt %appdata%\Nexouille Soft\arrm\database\systemes_igdb.txt %appdata%\Nexouille Soft\arrm\database\systemes_gametdb.txt
You have a system named atari2600
This system corresponds to the platform 26 on the Screencraper scrape engine It is therefore necessary that in the file: %appdata%\Nexouille Soft\arrm\database\systemes_screenscraper.txt , atari2600 is associated with the platform 26 which gives:
... atari2600|26 atari5200|40 atari7800|41 ...
The logic is the same for all other scrape engines.
If this is not the case, the scrape will not launch.
ARRM offers a tool to verify that your systems are indeed present in these various files.
This tool is available in the Tools tab via the button Check if systems exist in the scrape engines systems list
Once processing is complete, the file %appdata%\Nexouille Soft\arrm\temp\missing_systems_in_scrapers_systems_list opens and lists the systems not present in the various configuration files.
Up to you to add them
For screenscraper, it is imperative that your system is in the list otherwise the scrape cannot be done.