I get an error message with the reshade when I start my game

Hello,
I have an error once I install the reshade for farming simulator and that I launch the game the reshade works well but the concern I have an error message and following this error my presets do not save here the message that is written: Unable to save current prest. Make sure you have write permissions to C: \ program files (x86) \ farming simulator 2019 \ x64 \ defaultpreset. ini.

And sorry for my english i'm french

Thank you