What you haven't done is provide enough information to work from.
Is that message when you first open Xlights via a shortcut?
Have you just changed your Xlights show folder?
Have you had Xlights running in that folder before as a couple of the path/filename lengths look like they may be too long?
What happens if you press ok?
Sorry - I was stressing about what I had done - It appeared when opening X-lights. I tried to open FPP player and it was telling me I can't reach that page. I did get a new router so I thought it may have been IP settings that was causing issues- I still haven't been able to access that page. When I went into X-Lights to look at settings I kept getting the red light for my controller not connecting. I still can't access FPP.
I haven't changed my show folder location, the only thing I have done is move the Zipped files from downloaded sequences to an external hard drive to free up space (I have a very old slow computer) - I think I have made things worse I seem to have now lost all of my controller settings and layout settings - I have seemed to gone back 3 years to when I first started setting up x-Lights as when I pressed OK xlighs opened but it was completely blank there was no controller or layout settings - I think I made it worse by using the back up files and its gone back to before I had my controller and layout set up as there is only basic props in the layout.
I am hoping at least at 7:30 when the show was scheduled for that what I had saved for last year will automatically kick in - As I have a feeling I have to start from scratch