Run your strings through a sanitizer that converts smart quotes ( “ ” ) to straight quotes ( " " ). Avoid using & unless written as & in XML.
If the modder only included an English table ( 00 ) and your game is in French ( 03 ), you need to create a French table. Click on the working language String Table (e.g., English). sims 4 language strings best
The Sims 4 string parser is fragile. Certain characters will make your mod dump exceptions into the lastException.txt file. Run your strings through a sanitizer that converts