Will be very helpful instead jus throwing error when loaded json file is invalid, give us at least filename with path and even for non experienced people some message like

"Trying to load invalid JSON file path\to\that\damn.json - please validate it before deploy to server. You can use for example https://jsonlint.com"

Almost every day trying explain people that they have mistake somewhere.

Right now you providing for example this error when JSON is invalid:

JSON ERROR:
Invalid value.
Function: 'Error'
Stack trace:
scripts/1_Core/proto\endebug.c:92
scripts/3_Game/tools\jsonfileloader.c:29
rag/rag_thunderstruck/scripts/3_Game/rag_thunderstruck\ragtsconfig.c:65
rag/rag_thunderstruck/scripts/5_Mission/rag_thunderstruck\missionserver.c:6
$CurrentDir:mpmissions\empty.deerisle\init.c:110

which is not very helpful