Are you getting this wordpress error whilst trying to automatically update wordpress or a plugin?
Incompatible archive: PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature
The cure to this problem is simple, you’re webspace is full.
Simply add more space to your account or upgrade your hosting account or delete unused crap via FTP and bob’s your uncle you will be able to update WordPress or install those new plugins with ease!