Wordpress error

[lorcav123]

Today after long time I entered my web page in wordpress (wp admin) and when I want to install new plugin I got this error:

 

Installation failed: The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature

 

Every plugin when I tried to install gives me that error. Wordpress tells me that it is up to date. What to do?

[lorcav123]

I think I found the problem, I entered in cpanel and it tells me this:

 

 

Seems like there is no space?!?!

 

I am not expert with this, do I need to delete some pages from my website??