I tried Refresh Available Packages command too but got same result. This is the log for apache fail. there are 130 packages to update. 
Reading package lists…
Building dependency tree…
Reading state information…
The following extra packages will be installed:
apache2-bin apache2-data
Suggested packages:
ufw
The following packages will be upgraded:
apache2 apache2-bin apache2-data
3 upgraded, 0 newly installed, 0 to remove and 127 not upgraded.
Need to get 1069 kB of archives.
After this operation, 0 B of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
apache2 apache2-bin apache2-data
E: There are problems and -y was used without --force-yes