Some help would be much appreciated

Hi everyone,

I have an issue for several days and don't succed to fix it! :cry:

I just changed my old gtx 780 for a 1080 ti (msi gaming x 11g ), and since then, Octane ( and redshift ) on cinema 4D, doesn't want to render at all.
To stick to octane, i am getting a message error ( CUDA error 700 ...