Hi @proyrevistas,
Ah, the file_type of text/x-asm is the problem. If you change this to text/css I suspect this will start working properly.
As for why your system detected a MIME type of text/x-asm, that’s a complicated answer. Start with this thread and see if you can determine which of the available tools OJS is using to detect MIME types; then you can likely work with that tool to figure out why it’s detecting incorrectly.
Regards,
Alec Smecher
Public Knowledge Project Team