Error when Auth with Facebook

I can not authenticate facebook to flow-flow, after doing the setup on facebook, the redirection takes the first time to a blank page on flow.looks-awesome.com. The next few times, it only tells me that there is a critical error on my wordpress site.

I have this error on WordPress:
Warning: Trying to access array offset on value of type bool in /var/app/current/wp-content/plugins/flow-flow-social-streams/includes/cache/FFFacebookCacheManager.php on line 145 Warning: Trying to access array offset on value of type bool in /var/app/current/wp-content/plugins/flow-flow-social-streams/includes/cache/FFFacebookCacheManager.php on line 146

And this error in logs:

PHP Warning:  foreach() argument must be of type array|object, null given in /var/app/current/wp-admin/includes/plugin.php on line 1772
[19-Aug-2021 14:07:06 UTC] PHP Fatal error:  Uncaught TypeError: Unsupported operand types: int + string in /var/app/current/wp-content/plugins/flow-flow-social-streams/includes/db/FFDBManager.php:29
Stack trace:
#0 /var/app/current/wp-includes/class-wp-hook.php(292): flow\db\FFDBManager->social_auth('')
#1 /var/app/current/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters('', Array)
#2 /var/app/current/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#3 /var/app/current/wp-admin/admin-ajax.php(187): do_action('wp_ajax_flow_fl...')
#4 {main}
  thrown in /var/app/current/wp-content/plugins/flow-flow-social-streams/includes/db/FFDBManager.php on line 29
[19-Aug-2021 14:07:06 UTC] Fatal Error: Uncaught TypeError: Unsupported operand types: int + string in /var/app/current/wp-content/plugins/flow-flow-social-streams/includes/db/FFDBManager.php:29
Stack trace:
#0 /var/app/current/wp-includes/class-wp-hook.php(292): flow\db\FFDBManager->social_auth('')
#1 /var/app/current/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters('', Array)
#2 /var/app/current/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#3 /var/app/current/wp-admin/admin-ajax.php(187): do_action('wp_ajax_flow_fl...')
#4 {main}
  thrown in /var/app/current/wp-content/plugins/flow-flow-social-streams/includes/db/FFDBManager.php on line 29

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