When rendering with Mantra I'm getting this message. Does someone know how to fix it?

I reinstalled Optix and yet the problem persists.

Have you found a soulution up to this point?

Xtro
Have you found a solution up to this point?

No not yet. Actually, the deleting of the Opix folder helped med to remove this error message.

The Optix folder located in C:\Users\YOURNAME\Documents\houdini18.0 ?
Or somewhere else?

Edit: I just deleted that and it didn't worked, that is, the error was still active. But then, when i also deleted the file mentioned in the error itself, that the error dissolved. Thank you anyway