NethServer Imap problem

[root@nethserver ~]# grep NsReleaseLock /var/log/messages
Dec 4 08:21:21 nethserver /sbin/e-smith/db[81454]: /var/lib/nethserver/db/configuration: OLD sysconfig=configuration|Copyright||DefaultLanguage|en_US.utf8|NsReleaseLock|disabled|ProductName|NethServer|Release|final|Version|7.5.1804|ZeroConf|enabled
Dec 4 08:21:21 nethserver /sbin/e-smith/db[81454]: /var/lib/nethserver/db/configuration: NEW sysconfig=configuration|Copyright||DefaultLanguage|en_US.utf8|NsReleaseLock|enabled|ProductName|NethServer|Release|final|Version|7.5.1804|ZeroConf|enabled
Dec 4 09:43:49 nethserver /sbin/e-smith/db[15021]: /var/lib/nethserver/db/configuration: OLD sysconfig=configuration|Copyright||DefaultLanguage|en_US.utf8|NsReleaseLock|enabled|ProductName|NethServer|Release|final|Version|7.5.1804|ZeroConf|enabled
Dec 4 09:43:49 nethserver /sbin/e-smith/db[15021]: /var/lib/nethserver/db/configuration: NEW sysconfig=configuration|Copyright||DefaultLanguage|en_US.utf8|NsReleaseLock|disabled|ProductName|NethServer|Release|final|Version|7.5.1804|ZeroConf|enabled
Dec 4 09:50:21 nethserver /sbin/e-smith/db[16503]: /var/lib/nethserver/db/configuration: OLD sysconfig=configuration|Copyright||DefaultLanguage|en_US.utf8|NsReleaseLock|disabled|ProductName|NethServer|Release|final|Version|7.5.1804|ZeroConf|enabled
Dec 4 09:50:21 nethserver /sbin/e-smith/db[16503]: /var/lib/nethserver/db/configuration: NEW sysconfig=configuration|Copyright||DefaultLanguage|en_US.utf8|NsReleaseLock|enabled|ProductName|NethServer|Release|final|Version|7.5.1804|ZeroConf|enabled