Hello Mr.Stefano,
According to your statement, your project was done with TOOL2019 software, right? This is the software for our second generation products STV series and cannot be downloaded on the new product which is STWC043LT-01 without conversion.
If you would like to send me your complete project file, I can convert this file for you.
Please send to: sherry@stone-hmi.com
Best regards