Internal Server Error

Message: Class "Modules\PageBuilder\Controllers\FrontendController" not found
File: /home/innobogo/html/core/Router.php
Line: 223
Trace:
#0 /home/innobogo/html/core/Router.php(203): Core\Router->callHandler(Array, Object(Core\Http\Request), Array)
#1 /home/innobogo/html/core/Router.php(206): Core\Router->Core\{closure}(Object(Core\Http\Request))
#2 /home/innobogo/html/core/Bootstrap.php(338): Core\Router->dispatch(Object(Core\Http\Request))
#3 /home/innobogo/html/core/Bootstrap.php(513): Core\Bootstrap->handle(Object(Core\Http\Request))
#4 /home/innobogo/html/public/index.php(55): Core\Bootstrap->run()
#5 {main}