Linkedin and Packages

I have two questions here.

As per your theme settings users can login or create account using their google and linked in id. Only facebook login is working in my website.

Error code google:

401. <ins style="margin: 0px; padding: 0px; color: #777777; text-decoration: none;">That’s an error.</ins>

Error: invalid_client

The OAuth client was not found.

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linkedin not throwing any error messages. After entering my linkedin credential websites just flashes and shows the homepage without any user logged in.

My second question is:

Is it possible for me to add all functionalities to the employer users. As a good gesture, I plan to offer my services to employers for free of cost. Hence i have hidden the paid package and and made only free package visible in the registration page. But even after selecting all the option that gives complete freedom to the employers they are unable use search functionality.

when they click on the search resume :