I installed mambo on my reseller space and I can install module and components successfully.
After 1 month , My server suffered about 2 hours' downtime.Then it was back again.But from then on,I cann't install any module and components any more.
I have obtained many same lines of error information:
Warning: is_dir(): Stat failed for /home/tao/public_html/media/install_4381671f38298/languages (errno=13 - Permission denied) in /home/tao/public_html/administrator/includes/pcl/pclzip.lib.php on line 4287
check your permission for folder and files. and also owner group. also check phpinfo() information, may be after server crash sysadmin assign different settings for php.ini file. also, if of all of this wouldn't help you, export your database in file, reinstall mambo from fresh and then restore your database backup.
but, of course, will be best if your host can help you, because here we can give only very common recommendaton and tips...
Rustelekom LLC Dedicated server since 2002, RIPE NCC member, LIR, AS51168