Looping Tor

systemd restart loop tor@default.service every 60 seconds. Ubuntu system. Did a complete reinstallation of the system and the tor has the same error. Torcc is default. Journalctl -xe is show

-- The job identifier is 65029.                                                                                           
Apr 13 04:18:20  Tor[77580]: Signaled readiness to systemd                                       
Apr 13 04:18:21  Tor[77580]: Bootstrapped 5% (conn): Connecting to a relay                       
Apr 13 04:18:21  Tor[77580]: Opening Socks listener on /run/tor/socks                            
Apr 13 04:18:21  Tor[77580]: Opened Socks listener connection (ready) on /run/tor/socks          
Apr 13 04:18:21  Tor[77580]: Opening Control listener on /run/tor/control                        
Apr 13 04:18:21  Tor[77580]: Opened Control listener connection (ready) on /run/tor/control      
Apr 13 04:18:21  Tor[77580]: Bootstrapped 10% (conn_done): Connected to a relay                  
Apr 13 04:18:21  Tor[77580]: Bootstrapped 14% (handshake): Handshaking with a relay              
Apr 13 04:18:21  Tor[77580]: Bootstrapped 15% (handshake_done): Handshake with a relay done      
Apr 13 04:18:21  Tor[77580]: Bootstrapped 75% (enough_dirinfo): Loaded enough directory info to >
Apr 13 04:18:21  Tor[77580]: Bootstrapped 90% (ap_handshake_done): Handshake finished with a rel>
Apr 13 04:18:21  Tor[77580]: Bootstrapped 95% (circuit_create): Establishing a Tor circuit       
Apr 13 04:18:22  Tor[77580]: Bootstrapped 100% (done): Done                                      
Apr 13 04:19:01  systemd[1]: tor@default.service: Main process exited, code=killed, status=9/KILL
-- Subject: Unit process exited                                                                                           
-- Defined-By: systemd                                                                                                    
-- Support: http://www.ubuntu.com/support
-- 
-- An ExecStart= process belonging to unit tor@default.service has exited.
-- 
-- The process' exit code is 'killed' and its exit status is 9.
Apr 13 04:19:01  systemd[1]: tor@default.service: Failed with result 'signal'.
Edited by Gus