Connect Lingotek Account failed

When I click on “Connect Lingotek Account” the page is refreshed but nothing happen.
Looking at my query monitor i see that the oauth failed because of a 404 :

GET
https://myaccount.lingotek.com/auth/oauth2/access_token_info?access_token=XXXXXXXXXXXXXXXX
=> 404 Not Found (here i have replaced my token by XXXX)

CallStack :
WP_Http->get()
wp-includes/class-http.php:594
wp_remote_get()
wp-includes/http.php:170
Lingotek_API->get_token_details()
app/plugins/lingotek-translation/include/api.php:38
Lingotek_Admin->display_settings_page()
app/plugins/lingotek-translation/admin/admin.php:245
do_action(‘translation_page_lingotek-translation_settings’)
wp-includes/plugin.php:524