I did an upgrade to 1.5, follow all the instructions, ran the /cgi-bin/upgrade_14_15.cgi and got the DONE message, but when I try to access the main page I get 500 Internal Server Error. I got this from the logs.
[Wed Oct 07 07:21:52 2009] [error] [client 100.37.204.63] /usr/bin/perl: symbol lookup error: Modules/WSD/Filter50832.so: undefined symbol: Perl_Tstack_sp_ptr
[Wed Oct 07 07:21:52 2009] [error] [client 100.37.204.63] Premature end of script headers: index.cgi
What should I do? Thanks in advance.