A few things to start with, it looks like you are specifying a network path for your project suite instead of a relative path to your jobs working directory. That will need to be updated.
I'm also seeing in your error log though:
Could not init C:\Program Files (x86)\Jenkins\workspace\testcomplete_FA which means you're not getting your git code.
My guess is that you have job workspace directory set the same as your slave remote directory so it's putting jenkins file in there and you cannot init a git repo in a non empty directory