To make matters worse, I discovered that my server wasn't shuting down anymore. If I turn off the server between 1 hour our so after restart, it turns off good. Buit if I wait a day or so it wont turn off. I mention it because the last enter in the log is always a pulseway error every time the server is not able to turn off correctly:
Jul 18 10:29:45 Tower kernel: bond0 (unregistering): Released all slaves
Jul 18 10:29:45 Tower rc.inet1: ip link set lo down
Jul 18 10:29:45 Tower elogind-daemon[1687]: Received signal 15 [TERM]
Jul 18 10:29:45 Tower pulseway: Error sending notification: SOAP 1.1 fault SOAP-ENV:Server[no subcode]#012"No Recovery"#012Detail: get host by name failed in tcp_connect()
I can't assure this is the cause, but I've uninstall pulseway alltogether, so I will test the next days...