User.log filled with exception messages when watching movie through Cloud App

So I have been ignoring these messages in my user.log but today my user.log was so large that my mac console could not open it.  

I have been watching MP4 movies through my cloud app on my ipad mini at the gym through wifi. After watching for an hour or so, I would find these messages in my user.log, I am guessing every single second that I’m watching I’m getting an exception. 

Of course I have the following services turned off

/etc/init.d/nfs-kernel-server stop
/etc/init.d/nfs-common stop
/etc/init.d/upnp_nas stop
/etc/init.d/mDNSResponder stop
/etc/init.d/wdphotodbmergerd stop
/etc/init.d/wdnotifierd stop
/etc/init.d/wdmcserverd stop
/etc/init.d/wddispatcherd stop

Does anybody have an idea of what needs to be fixed? started, stopped? 

May 16 16:48:18 WDMyCloud Zend\Log[27752]: exception 'Exception' with message 'FILE_NOT_FOUND' in /var/www/rest-api/api/Filesystem/includes/contents.inc:235#012Stack trace:#012#0 /var/www/rest-api/api/Filesystem/includes/contents.inc(187): readFileFromPathNew('/shares/Cloudy/...', 'i1024s1', true, true)#012#1 /var/www/rest-api/api/Filesystem/src/Filesystem/Controller/FileContents.php(147): readFileFromShareNew('Cloudy', 'Shared Download...', 'i1024s1', true, true)#012#2 /var/www/rest-api/api/Core/src/Core/NasController.php(182): Filesystem\Controller\FileContents->get(Array, Array, 'json', '1.0')#012#3 /var/www/htdocs/api/rest/index.php(69): Core\NasController->exec()#012#4 {main}
May 16 16:48:18 WDMyCloud Zend\Log[27752]: exception 'Exception' with message 'FILE_NOT_FOUND' in /var/www/rest-api/api/Filesystem/includes/contents.inc:235#012Stack trace:#012#0 /var/www/rest-api/api/Filesystem/includes/contents.inc(187): readFileFromPathNew('/shares/Cloudy/...', 'i1024s1', true, true)#012#1 /var/www/rest-api/api/Filesystem/src/Filesystem/Controller/FileContents.php(147): readFileFromShareNew('Cloudy', 'Shared Download...', 'i1024s1', true, true)#012#2 /var/www/rest-api/api/Core/src/Core/NasController.php(182): Filesystem\Controller\FileContents->get(Array, Array, 'json', '1.0')#012#3 /var/www/htdocs/api/rest/index.php(69): Core\NasController->exec()#012#4 {main}#012#012Next exception 'Core\Rest\Exception' with message 'FILE_NOT_FOUND' in /var/www/rest-api/api/Filesystem/src/Filesystem/Controller/FileContents.php:149#012Stack trace:#012#0 /var/www/rest-api/api/Core/src/Core/NasController.php(182): Filesystem\Controller\FileContents->get(Array, Array, 'json', '1.0')#012#1 /var/www/htdocs/api/rest/index.php(69): Core\NasController->exec()#012#2 {main}
May 16 16:48:28 WDMyCloud Zend\Log[27752]: exception 'Exception' with message 'FILE_NOT_FOUND' in /var/www/rest-api/api/Filesystem/includes/contents.inc:235#012Stack trace:#012#0 /var/www/rest-api/api/Filesystem/includes/contents.inc(187): readFileFromPathNew('/shares/Cloudy/...', 'i1024s1', true, true)#012#1 /var/www/rest-api/api/Filesystem/src/Filesystem/Controller/FileContents.php(147): readFileFromShareNew('Cloudy', 'Shared Download...', 'i1024s1', true, true)#012#2 /var/www/rest-api/api/Core/src/Core/NasController.php(182): Filesystem\Controller\FileContents->get(Array, Array, 'json', '1.0')#012#3 /var/www/htdocs/api/rest/index.php(69): Core\NasController->exec()#012#4 {main}
May 16 16:48:28 WDMyCloud Zend\Log[27752]: exception 'Exception' with message 'FILE_NOT_FOUND' in /var/www/rest-api/api/Filesystem/includes/contents.inc:235#012Stack trace:#012#0 /var/www/rest-api/api/Filesystem/includes/contents.inc(187): readFileFromPathNew('/shares/Cloudy/...', 'i1024s1', true, true)#012#1 /var/www/rest-api/api/Filesystem/src/Filesystem/Controller/FileContents.php(147): readFileFromShareNew('Cloudy', 'Shared Download...', 'i1024s1', true, true)#012#2 /var/www/rest-api/api/Core/src/Core/NasController.php(182): Filesystem\Controller\FileContents->get(Array, Array, 'json', '1.0')#012#3 /var/www/htdocs/api/rest/index.php(69): Core\NasController->exec()#012#4 {main}#012#012Next exception 'Core\Rest\Exception' with message 'FILE_NOT_FOUND' in /var/www/rest-api/api/Filesystem/src/Filesystem/Controller/FileContents.php:149#012Stack trace:#012#0 /var/www/rest-api/api/Core/src/Core/NasController.php(182): Filesystem\Controller\FileContents->get(Array, Array, 'json', '1.0')#012#1 /var/www/htdocs/api/rest/index.php(69): Core\NasController->exec()#012#2 {main}

Hi there, I have not seen this before, maybe another user can provide more information about this.