System error

error:  mkdir /var/www/mason/org/cache/+5bsubcomponent+20+27layout+27+20of+20+2fbase2.html+5d/5/7: File exists at /usr/lib/perl5/site_perl/5.6.1/Cache/FileBackend.pm line 221
context: 
... 
115:  # whether they should generate a full stack trace (confess() and cluck())
116:  # or simply report the caller's package (croak() and carp()), respectively.
117:  # confess() and croak() die, carp() and cluck() warn.
118: 
119:  sub croak { die shortmess @_ }
120:  sub confess { die longmess @_ }
121:  sub carp { warn shortmess @_ }
122:  sub cluck { warn longmess @_ }
123: 
... 
code stack:  /usr/lib/perl5/5.6.1/Carp.pm:119
/usr/lib/perl5/5.6.1/File/Path.pm:140
/usr/lib/perl5/5.6.1/File/Path.pm:133
/usr/lib/perl5/site_perl/5.6.1/Cache/FileBackend.pm:221
/usr/lib/perl5/site_perl/5.6.1/Cache/FileBackend.pm:519
/usr/lib/perl5/site_perl/5.6.1/Cache/FileBackend.pm:655
/usr/lib/perl5/site_perl/5.6.1/Cache/FileBackend.pm:138
/usr/lib/perl5/site_perl/5.6.1/Cache/BaseCache.pm:294
/usr/lib/perl5/site_perl/5.6.1/Cache/BaseCache.pm:277
/usr/lib/perl5/site_perl/5.6.1/HTML/Mason/Request.pm:413
/var/www/html/org.new/base2.html:583
/usr/lib/perl5/site_perl/5.6.1/HTML/Mason/Request.pm:437
/var/www/html/org.new/base2.html:32
/var/www/html/org.new/base2.html:611
/usr/lib/perl5/site_perl/5.6.1/HTML/Mason/Request.pm:437
/var/www/html/org.new/base2.html:135
/var/www/html/org.new/autohandler:47