I have quite the same problem as well. After updating WP Job Manager Plug in. I got this:
Warning: An unexpected error occurred. Something may be wrong with www.ads-software.com or this server’s configuration. If you continue to have problems, please try the support forums. (WordPress could not establish a secure connection to www.ads-software.com. Please contact your server administrator.) in /Applications/MAMP/htdocs/bpoavenue/wp-admin/includes/plugin-install.php on line 77
Any help? Thanks