mongos> sh.status()
assert: command failed: {
    "ok" : 0,
    "errmsg" : "error processing query: ns=config.mongosTree: ping $gt new Date(1542173873192)nSort: {}nProj: {}n No query solutions",
    "code" : 2
} : aggregate failed
_getErrorWithCode@src/mongo/shell/utils.js:25:13
doassert@src/mongo/shell/assert.js:16:14
assert.commandWorked@src/mongo/shell/assert.js:290:5
DBCollection.prototype.aggregate@src/mongo/shell/collection.js:1312:5
printShardingStatus@src/mongo/shell/utils_sh.js:611:13
sh.status@src/mongo/shell/utils_sh.js:78:5
@(shell):1:1

2018-11-14T05:38:55.904+0000 E QUERY    [thread1] Error: command failed: {
    "ok" : 0,
    "errmsg" : "error processing query: ns=config.mongosTree: ping $gt new Date(1542173873192)nSort: {}nProj: {}n No query solutions",
    "code" : 2
} : aggregate failed :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
doassert@src/mongo/shell/assert.js:16:14
assert.commandWorked@src/mongo/shell/assert.js:290:5
DBCollection.prototype.aggregate@src/mongo/shell/collection.js:1312:5
printShardingStatus@src/mongo/shell/utils_sh.js:611:13
sh.status@src/mongo/shell/utils_sh.js:78:5
@(shell):1:1