Can you get to the CLI (ssh or Terminal) and do systemctl --user status rockpoold ?
[nemo@Sailfish ~]$ systemctl --user status rockpoold rockpoold.service - Rockpool daemon for Pebble smartwatches Loaded: loaded (/usr/lib/systemd/user/rockpoold.service; enabled) Active: failed (Result: start-limit) since Sun 2016-10-02 10:28:53 BST; 26s ago Process: 8349 ExecStart=/usr/bin/invoker -o --type=qt5 /usr/bin/rockpoold (code=exited, status=1/FAILURE ) Main PID: 8349 (code=exited, status=1/FAILURE)
[nemo@Sailfish ~]$ /usr/bin/invoker -o --type=qt5 /usr/bin/rockpoold invoker: Invoking execution: '/usr/bin/rockpoold' Failed to invoke: Booster: Loading invoked application failed: 'libQt5Bluetooth.so.5: cannot open shared o bject file: No such file or directory'