owncloud - Error PHP session_name(): session.name cannot be a numeric or empty '

HI All,

Looked into the OwnCloud logs to find a whole bunch or errors that are appearing every second:

ErrorPHPsession_name():session.name cannot be a numeric or empty '266839903580132773311539455182622461127' at /var/www/owncloud/lib/private/session/internal.php#20

Im unsure if its always been there of only a recent issue as this the first time I've checked the log in owncloud.

This is the contents of the /media/***ID***/Cloud content directory:

Quote

-rw-rw-rw- 1 www-data www-data 58 Jul 25 17:49 mount.json
-rw-r--r-- 1 www-data www-data 0 Jul 25 17:49 .ocdata
drwxr-xr-x 2 www-data www-data 4096 Jul 25 10:42 owncloud-154392475062630890592339941589769030855
drwxr-xr-x 2 www-data www-data 4096 Aug 8 17:07 owncloud-266839903580132773311539455182622461127
drwxr-xr-x 2 www-data www-data 4096 Jul 25 11:02 owncloud-303413382737292774376336766596245654727
-rw-r--r-- 1 www-data www-data 782336 Aug 8 17:08 owncloud.db
-rw-r----- 1 www-data www-data 5279730 Aug 8 17:24 owncl

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Can anyone advise what might be the problem?

Thanks,
Jason