Select the right Adobe Illustration version which is intalled on your computer:
In Sysfilter go to Tools -> Options -> Settings -> Illustrator version
If you are using the 64 Bit version of Adobe Illustrator:
Have you activated the checkbox for the 64 Bit version of Sysfilter for Illustrator.
Did you also entered the right path to the 64 Bit installation ?
On some systems there are problems using the 64 Bit versions of Illustrator. Espacially after Windows 10 updates.
In these cases, we recommend to use the 32 Bit version of Illustrator:
Download link (Adobe Illustrator CC 2018):