Update from 1.2.2 to 1.2.9

if i try to replace it with php-apcu it tells me, that it's not possible to locate the package. Do i need to change my sources.list for that?

Debian Wheezy

Ok the update worked Thx @Ninos

Now i want to update my ssl certificates with:

/var/www/imscp/engine/setup/imscp-setup —reconfigure ssl

And i do receive this errors:

[ERROR] main::setupRebuildCustomerFiles:
Error while rebuilding customers files: sh: 0: getcwd() failed: No such file or directory
[WARN] iMSCP::Debug::__ANON__: cannot fetch initial working directory: No such file or directory at /usr/share/perl/5.14/File/Temp.pm line 2445

iMSCP::Debug::__ANON__: Missing argument in sprintf at /var/www/imscp/engine/PerlLib/iMSCP/Dir.pm line 279.

iMSCP::Debug::__ANON__: cannot fetch initial working directory: No such file or directory at /usr/share/perl/5.14/File/Temp.pm line 2445

[FATAL] iMSCP::Debug::__ANON__: Could not delete general error: cannot fetch initial working directory: No such file or directory
: at /var/www/imscp/engine/PerlLib/iMSCP/Dir.pm line 279.

Ok the update helped.

But i'm not able to chance the ssl certificate with --reconfigure ssl