Error S1T00

SR171: Transaction timed out
in
WS.WS.SSE_GET([executable]/dav_api.sql:6707),
          id => 554355,
        what => 'R',
DB.DBA.DAV_RES_CONTENT_INT([executable]/dav_api.sql:5882),
          id => 554355,
     content => (STRING_SESSION value, tag 185),
        type => 'text/html',
  content_mode => 1,
      extern => 0,
  auth_uname => NULL,
    auth_pwd => NULL,
WS.WS.GET([executable]/dav.sql:2995),
        path => (ARRAY_OF_POINTER value, tag 193),
      params => (ARRAY_OF_POINTER value, tag 193),
       lines => (ARRAY_OF_POINTER value, tag 193)