[resolved] Unable to edit Contacts Relationships

I can edit other modules file but when I try to edit the relationships on the contacts module this javascript error occurs and it wont load:

http://crm.dmydomin.com/index.php?to_pdf=1&sugar_body_only=1&get_tpl=true&module=ModuleBuilder&action=relationships&view_module=Contacts Failed to load resource: the server responded with a status of 502 (Bad Gateway)

I looked on the server and this is the PHP error that seems to tally up:

2016/08/08 01:02:00 [error] 6910#0: *39 FastCGI sent in stderr: "domain.com/app/include/SubPanel/SubPanelDefinitions.php on line 98

Is this broken for anyone else?

How can I fix it?

I needed to increase buffer size as url was too long

fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;

If you want to add, delete or modify the contacts information on your personal PC.You can use Samsung phone backup app.What’s more, you can export and save contact list to computer as an editable file format CSV.

If you want to add, delete , modify ,edit contacts information on your personal PC.You can use Samsung phone backup app.What’s more, you can export and save contact list to computer as an editable file format CSV.