Plugin errors

1. Plugin doesn't post at the regular interval or sends more posts than it should send to social networks.

Unfortunately wp_cron function isn't perfect and it triggers just when somebody visits your website. If  nobody visits your site for 3 hours, Revive Old Post won't trigger. In order to achieve this you need to enable Remote Check and add this line to your wp-config.php right after the lines with database credentials:

define('DISABLE_WP_CRON', true);

2. Posts are not sent to the social networks and i always see the green badge with 'You can refresh the page to see the next schedule!'

You need to add this line to your wp-config.php right after the lines with database credentials:

define('ALTERNATE_WP_CRON', true);