Symlink from modules failed

PBX Firmware: 10.13.66-9
Asterisk 11.21.2

Hi,
After updated about 15 modules i get this on the dashboard
"retrieve_conf failed to sym link:
/var/lib/asterisk/bin/check_portal.php from sysadmin/bin (Already exists, not a link)
/var/lib/asterisk/bin/register_new from sysadmin/bin (Already exists, not a link)
/var/lib/asterisk/bin/storage.php from sysadmin/bin (Already exists, not a link)
/var/lib/asterisk/bin/register_serial from sysadmin/bin (Already exists, not a link)
/var/lib/asterisk/bin/licinfo from sysadmin/bin (Already exists, not a link)
/var/lib/asterisk/bin/update from sysadmin/bin (Already exists, not a link)
/var/lib/asterisk/bin/activate_existing from sysadmin/bin (Already exists, not a link)
This can result in FATAL failures to your PBX. If the target file exists and not identical, the symlink will not occur and you should rename the target file to allow the automatic sym link to occur and remove this error, unless this is an intentional customization."
Anyone can help,please
Thank you

Problem solved.
I renamed the check_portal.php file.
Restarted asterisk,reloaded configs and dashboad message disappeared.