Hi K-ef,
most likely CampTix uses a php template to display the content.
Laytheme is coded as a singe-page Javascript-Application. This means that it does not use php templates in the normal way.
Because of that it is not possible to use own template pages or plugins which use their own template pages. (Woo Commerce, CampTix, etc).
If you want to use CampTix with the LayTheme. I can recommend a normal Wordpress installation with the LayGridder. This is the closest you can get.
I will write that down for the future,
If you really need to use CampTix – we can give you the money back which you payed for LayTheme.
Best!
Marius