User warning: log4php: Invalid class [\Drupal\fb_instant_articles\DrupalLoggerAppender] given for appender [facebook-instantarticles-transformer]. Class does not exist. Skipping appender definition. in LoggerConfiguratorDefault->warn() (line 475 of /var/www/vhosts/kth/observer/ar25.org/observer/www/sites/all/vendor/apache/log4php/src/main/php/configurators/LoggerConfiguratorDefault.php).

User warning: log4php: Invalid class [\Drupal\fb_instant_articles\DrupalLoggerAppender] given for appender [facebook-instantarticles-client]. Class does not exist. Skipping appender definition. in LoggerConfiguratorDefault->warn() (line 475 of /var/www/vhosts/kth/observer/ar25.org/observer/www/sites/all/vendor/apache/log4php/src/main/php/configurators/LoggerConfiguratorDefault.php).

User warning: log4php: Nonexistnant appender [facebook-instantarticles-transformer] linked to logger [root]. in LoggerConfiguratorDefault->warn() (line 475 of /var/www/vhosts/kth/observer/ar25.org/observer/www/sites/all/vendor/apache/log4php/src/main/php/configurators/LoggerConfiguratorDefault.php).

User warning: log4php: Nonexistnant appender [facebook-instantarticles-client] linked to logger [root]. in LoggerConfiguratorDefault->warn() (line 475 of /var/www/vhosts/kth/observer/ar25.org/observer/www/sites/all/vendor/apache/log4php/src/main/php/configurators/LoggerConfiguratorDefault.php).