Not able login by Google plus my wordpress site

[Google Code Exporter]

Fatal error: Uncaught exception 'Google_AuthException' with message 'Error 
fetching OAuth2 access token, message: 'invalid_grant'' in 
/home/tivus/public_html/chris/sc/wp-content/themes/javo-directory/library/addons
/google-sign-in/auth/Google_OAuth2.php:113 Stack trace: #0 
/home/tivus/public_html/chris/sc/wp-content/themes/javo-directory/library/addons
/google-sign-in/Google_Client.php(131): Google_OAuth2->authenticate(Array, 
'4/50NvhcEFb_clP...') #1 
/home/tivus/public_html/chris/sc/wp-content/themes/javo-directory/library/addons
/addon-google-login.php(96): Google_Client->authenticate('4/50NvhcEFb_clP...') 
#2 
/home/tivus/public_html/chris/sc/wp-content/themes/javo-directory/library/addons
/addon-google-login.php(78): 
javo_Addons_Google_Login::jv_google_oauth_login(Array) #3 [internal function]: 
javo_Addons_Google_Login::googleplus_oauth_callback('') #4 
/home/tivus/public_html/chris/sc/wp-includes/plugin.php(496): 
call_user_func_array(Array, Array) #5 
/home/tivus/public_html/chris/sc/wp-admin/admin-ajax.php(96): do_action('wp in 
/home/tivus/public_html/chris/sc/wp-content/themes/javo-directory/library/addons
/google-sign-in/auth/Google_OAuth2.php on line 113

Original issue reported on code.google.com by [e-mail] on 7 Aug 2015 at 10:50