HTTP ERROR 502

Problem accessing ZCS upstream server.ntCannot connect to the ZCS upstream server. Connection is refused.
n Possible reasons:n

n
• upstream server is unreachable
n
• upstream server is currently being upgraded
n
• upstream server is down
n

Loading package: MailCore mail..com.au:1484:48
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help http://xhr.spec.whatwg.org/ mail..com.au:1090:2

Loading package: Share mail..com.au:1484:48

Loading package: ContactsCore mail..com.au:1484:48

Loading package: Startup2 mail..com.au:1484:48

Loading package: CalendarCore, Calendar mail..com.au:1484:48

Loading package: Zimlet mail..com.au:1484:48
This page uses the non standard property “zoom”. Consider using calc() in the relevant property values, or using “transform” along with “transform-origin: 0 0”. mail..com.au

Loading package: Alert mail..com.au:1484:48
13-10-2019 15:59:3,282 LOG  Zimlets-nodev_all.js.zgz:10666:9
Installed v0.1.0 Zimlets-nodev_all.js.zgz:10679:9

Loading package: Contacts mail..com.au:1484:48
13-10-2019 15:59:3,642 LOG  Zimlets-nodev_all.js.zgz:10666:9
Object { version: "3.0.3", commit: "1c551d64019f38573a7c985f19ab1c452315c84f", ClientZimlet_MobilePassword: false, ClientZimlet_MobileSync: true }
Zimlets-nodev_all.js.zgz:10679:9
13-10-2019 15:59:3,644 LOG  Zimlets-nodev_all.js.zgz:10666:9
Object { version: {…} }
Zimlets-nodev_all.js.zgz:10679:9
13-10-2019 15:59:3,646 LOG  Zimlets-nodev_all.js.zgz:10666:9
Init done Zimlets-nodev_all.js.zgz:10679:9
13-10-2019 15:59:3,646 LOG  Zimlets-nodev_all.js.zgz:10666:9
Init done Zimlets-nodev_all.js.zgz:10679:9
13-10-2019 15:59:3,648 LOG  Zimlets-nodev_all.js.zgz:10666:9
Component disabled Zimlets-nodev_all.js.zgz:10679:9
13-10-2019 15:59:3,773 LOG  Zimlets-nodev_all.js.zgz:10666:9
Component enabled Zimlets-nodev_all.js.zgz:10679:9

Loading package: Mail mail..com.au:1484:48
13-10-2019 15:59:4,568 WARN [] Zimlets-nodev_all.js.zgz:10666:9
Unable to override 'ZmMailFolderTreeController.prototype.resetOperations', function already overridden. Zimlets-nodev_all.js.zgz:10674:9
Requesting Notification permission outside a short running user-generated event handler is deprecated and will not be supported in the future. mail..com.au

Loading package: ZimletApp mail..com.au:1484:48

Loading package: TasksCore mail..com.au:1484:48
XML Parsing Error: no root element found
Location: https://mail..com.au/zx/team/v3/sendFile?convers…5596918efb/33c49433-6060-46b6-aa72-d573f45c588f1573624795913
Line Number 1, Column 1: sendFile:1:1
Intercept API rejection: 
Object { statusCode: 413, error: "" }
ApiClient.js:436:3
_interceptRejection ApiClient.js:436
Intercept API rejection: 
Object { statusCode: 502, error: "nnnnnn
HTTP ERROR 502
n
Problem accessing ZCS upstream server.ntCannot connect to the ZCS upstream server. Connection is refused.
n    Possible reasons:n    
n        
upstream server is unreachable
n        
upstream server is currently being upgraded
n        
upstream server is down
n    
n    Please contact your ZCS administrator to fix the problem.n

nPowered by Nginx-Zimbra://
                                                n
                                                n
                                                n
                                                n
                                                n
                                                n
                                                n
                                                n
                                                                                             nnnn" }
ApiClient.js:436:3
_interceptRejection ApiClient.js:436