Major errors when attempting to install a fresh SSL certificate

[zoldos]

I just finished installing my site (Ubunto 14.04/PHP 7.09/Plesk 12.5). But whenver I try to install the Let’s Encrypt free SSL Cert I get the following error (it also happens when I tried PHP 5.5.9). Please help!

 Let's Encrypt SSL certificate installation failed: Failed letsencrypt execution: Traceback (most recent call last):
File "/opt/psa/var/modules/letsencrypt/venv/bin/certbot", line 11, in <module>
sys.exit(main())
File "/usr/local/psa/var/modules/letsencrypt/venv.4aVPA/lib/python2.7/site-packages/certbot/main.py", line 700, in main
plugins = plugins_disco.PluginsRegistry.find_all()
File "/usr/local/psa/var/modules/letsencrypt/venv.4aVPA/lib/python2.7/site-packages/certbot/plugins/disco.py", line 174, in find_all
plugin_ep = PluginEntryPoint(entry_point)
File "/usr/local/psa/var/modules/letsencrypt/venv.4aVPA/lib/python2.7/site-packages/certbot/plugins/disco.py", line 33, in __init__
self.plugin_cls = entry_point.load()
File "/usr/local/psa/var/modules/letsencrypt/venv.4aVPA/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2280, in load
self.require(*args, **kwargs)
File "/usr/local/psa/var/modules/letsencrypt/venv.4aVPA/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2297, in require
items = working_set.resolve(reqs, env, installer)
File "/usr/local/psa/var/modules/letsencrypt/venv.4aVPA/lib/python2.7/site-packages/pkg_resources/__init__.py", line 858, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
ContextualVersionConflict: (cryptography 1.3.1 (/opt/psa/var/modules/letsencrypt/venv.4aVPA/lib/python2.7/site-packages), Requirement.parse('cryptography>=1.3.4'), set(['PyOpenSSL']))

[zoldos]

Can anyone help please? I’d love to use the free SSL but cannot. I also get this error on a second domain I added to my site.

[zoldos]

Okay fixed after a re-install of the extension.