Erro ao instalar novo site com WO

Quando tento instalar um novo site usando WO recebo o seguinte erro, alguém sabe como resolver?:

File “/opt/wo/lib/python3.5/site-packages/pymysql/”, line 571, i n connect
File “/usr/lib/python3.5/”, line 712, in create_connection
raise err
File “/usr/lib/python3.5/”, line 703, in create_connection
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/usr/local/bin/wo”, line 8, in
File “/opt/wo/lib/python3.5/site-packages/wo/cli/”, line 102, in main
File “/opt/wo/lib/python3.5/site-packages/cement/core/”, line 882 , in run
return_val = self.controller._dispatch()
File “/opt/wo/lib/python3.5/site-packages/cement/core/”, line 471 , in _dispatch
return func()
File “/opt/wo/lib/python3.5/site-packages/cement/core/”, line 471 , in _dispatch
return func()
File “/opt/wo/lib/python3.5/site-packages/cement/core/”, line 477 , in _dispatch
return func()
File “/opt/wo/lib/python3.5/site-packages/wo/cli/plugins/”, line 375, in default
wo_wp_creds = setupwordpress(self, data, vhostonly)
File “/opt/wo/lib/python3.5/site-packages/wo/cli/plugins/”, l ine 288, in setupwordpress
data = setupdatabase(self, data)
File “/opt/wo/lib/python3.5/site-packages/wo/cli/plugins/”, l ine 201, in setupdatabase
File “/opt/wo/lib/python3.5/site-packages/wo/core/”, line 71, in execu te
connection = WOMysql.connect(self)
File “/opt/wo/lib/python3.5/site-packages/wo/core/”, line 35, in conne ct
File “/opt/wo/lib/python3.5/site-packages/pymysql/”, line 94, in Co nnect
return Connection(*args, **kwargs)
File “/opt/wo/lib/python3.5/site-packages/pymysql/”, line 327, i n init
File “/opt/wo/lib/python3.5/site-packages/pymysql/”, line 619, i n connect
raise exc
pymysql.err.OperationalError: (2003, “Can’t connect to MySQL server on ‘localhos t’ ([Errno 111] Connection refused)”)

Ainda tem armazenamento disponível?
Verifica com df -h