Imsanity doesn't work for me. I found the reason but I need Help

I installed Imsanity in my WordPress site
I use Gravity Forms and Gravity View. The images are located in a different directory that the images default wordpress directory. This is the reason why Imsanity doesn’t work for me. I found the reason why Imsanity doesn’t work but I need help.

I would be very interested with a shell script or something though for solving my probleme.

https://www.ads-software.com/plugins/imsanity/