I have had this customer WP site for 7 months with no problem. I need to revamp the site - content and theme. I tried to upgrade today to 2.9.1 and got this error message. I get this when I try to upgrade the plugins as well
"Incompatible archive PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature"
Any help will be greatly appreciated.
Thanks in advance