Problem to upgrade System Admin 2.11.0.13 to 2.11.0.23

The following upgrade gives me problems:

System Admin 2.11.0.13 will be upgraded to 2.11.0.23

This is the GUI output

Please wait while module actions are performed

Downloading sysadmin 166189 of 166189 (100%)
Untarring…Done.
2.6.1 18_centos5 ERROR: Unable to install sysadmin. The sysadmin RPM you have installed is too old. Please update the sysadmin rpm via the command line, using yum install sysadmin
Error(s) installing sysadmin:
Failed to run installation scripts

Return

On the CLI the outcome of the “yum install sysadmin” is this:
[root]# yum install sysadmin
Loaded plugins: fastestmirror, kmod
Loading mirror speeds from cached hostfile
base/primary_db | 3.5 MB 00:02
http://yum.freepbxdistro.org/centos/6.3/os/i386/repodata/c10612878e8c327620e74a99fffdf54b03ac71e4e3eac2c1b01eb68aefc47434-primary.sqlite.bz2: [Errno -3] Error performing checksum
Trying other mirror.
Error: failure: repodata/c10612878e8c327620e74a99fffdf54b03ac71e4e3eac2c1b01eb68aefc47434-primary.sqlite.bz2 from base: [Errno 256] No more mirrors to try.
[root]#

There seems to be something wrong with the repository file. Or I am using the wrong repository. Here is the output of the repo-file.

[root]# cat /etc/yum.repos.d/FreePBX.repo

FreePBX-Base.repo

If the mirrorlist= does not work for you, as a fall back you can try the

remarked out baseurl= line instead.

[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.freepbxdistro.org/?release=6.3&arch=$basearch&repo=os
#baseurl=http://yum.freepbxdistro.org/centos/$releasever/os/arch=$basearch/
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#released updates
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.freepbxdistro.org/?release=6.3&arch=$basearch&repo=updates
#baseurl=http://yum.freepbxdistro.org/centos/$releasever/updates/arch=$basearch/
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.freepbxdistro.org/?release=6.3&arch=$basearch&repo=extras
#baseurl=http://yum.freepbxdistro.org/centos/$releasever/extras/arch=$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.freepbxdistro.org/?release=6.3&arch=$basearch&repo=centosplus
#baseurl=http://yum.freepbxdistro.org/centos/$releasever/centosplus/arch=$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#Core PBX Packages
[pbx]
name=pbx
mirrorlist=http://mirrorlist.freepbxdistro.org/?pbxver=3.211.63&release=6.3&arch=$basearch&repo=pbx
#baseurl=http://yum.freepbxdistro.org/pbx/3.211.63/arch=$basearch/
gpgcheck=0
enabled=1
#gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-FreePBX

Up to a week ago the upgrades worked fine. Did I miss something that needed changing manually? Or is something really wrong? Can someone give me a hint?

Thanks

This is a current problem with the FreePBX distribution, you post in the “installation” forum, look for solutions there.