Seafile部署在Ubuntu 16.04上，安装后访问正常，可以创建人员，但是无法创建资料库，输入资料库名称点击提交，没有反应，麻烦各位大神帮忙看看。
查看后台有如下报错：
controller.log的部分内容：
[06/26/19 21:12:47] seafile-controller.c(432): seaf-server need restart…
[06/26/19 21:12:47] Disconnected from daemon
[06/26/19 21:12:47] seafile-controller.c(488): restarting ccnet server …
[06/26/19 21:12:47] seafile-controller.c(169): starting ccnet-server …
[06/26/19 21:12:47] seafile-controller.c(73): spawn_process: ccnet-server -F /home/yunwei/seafile/conf -c /home/yunwei/seafile/ccnet -f /home/yunwei/seafile/logs/ccnet.log -d -P /home/yunwei/seafile/pids/ccnet.pid
[06/26/19 21:12:47] seafile-controller.c(88): spawned ccnet-server, pid 19715
[06/26/19 21:12:48] seafile-controller.c(571): ccnet daemon connected.
[06/26/19 21:12:48] seafile-controller.c(201): starting seaf-server …
[06/26/19 21:12:48] seafile-controller.c(73): spawn_process: seaf-server -F /home/yunwei/seafile/conf -c /home/yunwei/seafile/ccnet -d /home/yunwei/seafile/seafile-data -l /home/yunwei/seafile/logs/seafile.log -P /home/yunwei/seafile/pids/seaf-server.pid
[06/26/19 21:12:48] seafile-controller.c(88): spawned seaf-server, pid 19720
[06/26/19 21:12:48] seafile-controller.c(544): seafdav not enabled.
[06/26/19 21:12:58] seafile-controller.c(411): pid file /home/yunwei/seafile/pids/seaf-server.pid does not exist
[06/26/19 21:12:58] seafile-controller.c(432): seaf-server need restart…
[06/26/19 21:12:58] Disconnected from daemon
[06/26/19 21:12:58] seafile-controller.c(488): restarting ccnet server …
[06/26/19 21:12:58] seafile-controller.c(169): starting ccnet-server …
[06/26/19 21:12:58] seafile-controller.c(73): spawn_process: ccnet-server -F /home/yunwei/seafile/conf -c /home/yunwei/seafile/ccnet -f /home/yunwei/seafile/logs/ccnet.log -d -P /home/yunwei/seafile/pids/ccnet.pid
[06/26/19 21:12:58] seafile-controller.c(88): spawned ccnet-server, pid 19747
[06/26/19 21:12:59] seafile-controller.c(571): ccnet daemon connected.
[06/26/19 21:12:59] seafile-controller.c(201): starting seaf-server …
[06/26/19 21:12:59] seafile-controller.c(73): spawn_process: seaf-server -F /home/yunwei/seafile/conf -c /home/yunwei/seafile/ccnet -d /home/yunwei/seafile/seafile-data -l /home/yunwei/seafile/logs/seafile.log -P /home/yunwei/seafile/pids/seaf-server.pid
[06/26/19 21:12:59] seafile-controller.c(88): spawned seaf-server, pid 19753
[06/26/19 21:12:59] seafile-controller.c(544): seafdav not enabled.
seahub.log的部分内容：
SearpcError: Error received: 511 Unknown service (In _start_service)
2019-06-26 08:30:15,449 [ERROR] django.request:135 handle_uncaught_exception Internal Server Error: /api2/repos/public/
Traceback (most recent call last):
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/django/core/handlers/exception.py”, line 41, in inner
response = get_response(request)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/django/core/handlers/base.py”, line 249, in _legacy_get_response
response = self._get_response(request)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/django/core/handlers/base.py”, line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/django/core/handlers/base.py”, line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/django/views/decorators/csrf.py”, line 58, in wrapped_view
return view_func(*args, **kwargs)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/django/views/generic/base.py”, line 68, in view
return self.dispatch(request, *args, **kwargs)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/seahub/api2/base.py”, line 23, in dispatch
response = super(APIView, self).dispatch(*a, **kw)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/rest_framework/views.py”, line 466, in dispatch
response = self.handle_exception(exc)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/seahub/api2/base.py”, line 20, in handle_exception
return super(APIView, self).handle_exception(exc)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/thirdpart/rest_framework/views.py”, line 463, in dispatch
response = handler(request, *args, **kwargs)
File “/home/yunwei/seafile/seafile-server-6.3.4/seahub/seahub/api2/views.py”, line 1053, in post
repo_desc, username, passwd)
File “/home/yunwei/seafile/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/seaserv/api.py”, line 88, in create_repo
return seafserv_threaded_rpc.create_repo(name, desc, username, passwd)
File “/home/yunwei/seafile/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/pysearpc/client.py”, line 110, in newfunc
ret_str = self.call_remote_func_sync(fcall_str)
File “/home/yunwei/seafile/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/ccnet/rpc.py”, line 75, in call_remote_func_sync
req_id = self._start_service(client)
File “/home/yunwei/seafile/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/ccnet/rpc.py”, line 36, in _start_service
raise SearpcError(“Error received: %s %s (In _start_service)” % (rsp.code, rsp.code_msg))
SearpcError: Error received: 511 Unknown service (In _start_service)
应该怎么解决呢，请各位帮忙看看，万分感谢！