Internal Server Error

Exception: A layout has not been configured for this site.

    in /var/www/html/martini-git/src/modules/BlockArticleModule.php at line 264

#0 /var/www/html/martini-git/src/core/ModuleController.php(229): BlockArticleModule->generateIndex(Object(HttpRequest), Array)
#1 /var/www/html/martini-git/src/core/ModuleController.php(181): ModuleController->callAction('generateindex', Object(HttpRequest))
#2 /var/www/html/martini-git/src/core/ModuleController.php(58): ModuleController->handleRequest(Object(HttpRequest))
#3 /var/www/html/martini-git/src/web.php(626): ModuleController->handleDisplayRequest(Object(HttpRequest))
#4 /var/www/html/martini-git/src/web.php(107): RequestHandler->handleRequestInternal(Object(HttpRequest))
#5 /var/www/html/martini-git/lib/http.php(77): RequestHandler->handleRequest(Object(HttpRequest))
#6 /var/www/html/martini-git/htdocs/index.php(155): HttpApplication->run()
#7 {main}