Hi. All

Today when I tried to access my Odoo then I face below issue.

Traceback (most recent call last):
  File "/home/ubuntu/python36/lib/python3.7/site-packages/werkzeug/serving.py", line 304, in run_wsgi
    execute(self.server.app)
  File "/home/ubuntu/python36/lib/python3.7/site-packages/werkzeug/serving.py", line 292, in execute
    application_iter = app(environ, start_response)
  File "/opt/odoo13/odoo/service/server.py", line 439, in app
    return self.app(e, s)
  File "/opt/odoo13/odoo/service/wsgi_server.py", line 142, in application
    return application_unproxied(environ, start_response)
  File "/opt/odoo13/odoo/service/wsgi_server.py", line 117, in application_unproxied
    result = odoo.http.root(environ, start_response)
  File "/opt/odoo13/odoo/http.py", line 1281, in __call__
    return self.dispatch(environ, start_response)
  File "/opt/odoo13/odoo/http.py", line 1251, in __call__
    return self.app(environ, start_wrapped)
  File "/home/ubuntu/python36/lib/python3.7/site-packages/werkzeug/middleware/shared_data.py", line 220, in __call__
    return self.app(environ, start_response)
  File "/opt/odoo13/odoo/http.py", line 1454, in dispatch
    response = self.get_response(httprequest, result, explicit_session)
  File "/opt/odoo13/odoo/http.py", line 1386, in get_response
    self.session_store.save(httprequest.session)
  File "/home/ubuntu/python36/lib/python3.7/site-packages/werkzeug/contrib/sessions.py", line 261, in save
    f.close()
OSError: [Errno 28] No space left on device - - -