I’ve managed to get feed-writer working by restarting it manually, and searching the forum I found this this post that showed the same error regarding mqtt_input Mqtt_input service down: 'activating (auto-restart)' state
I have the same error in /var/log/daemon.log:
mqtt_input[16236]: PHP Warning: require(Lib/EmonLogger.php): failed to open stream: No such file or directory in /var/www/emoncms/scripts/phpmqtt_input.php on line 47
but the file exists:
ls -l /var/www/emoncms/Lib/EmonLogger.php
-rw-r–r-- 1 pi pi 2371 Dec 11 22:11 /var/www/emoncms/Lib/EmonLogger.php
Any help appreciated