White page and some errors visiting pages of Fuego and Gnugo

Hello,

edit: Using Firefox 55.0.3 (64-bit) on Desktop.

visiting https://online-go.com/player/58441/, I get white page (head menu still present):

20:03:59.135 /api/v1/players/58441/full 502 Bad Gateway requests.ts:159:24
20:03:59.138 o/<@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:17:16365
I</t.prototype.resolve@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:23:331650
I</t.prototype.componentDidMount@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:23:331172
[6]</a</e.prototype.notifyAll@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:12:7747
close@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:14:18176
closeAll@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:15:9615
perform@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:15:9107
s@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:14:10886
perform@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:15:9027
batchedUpdates@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:14:3939
i@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:14:23015
_renderNewRootComponent@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:14:12147
_renderSubtreeIntoContainer@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:14:13144
render@https://cdn.online-go.com/lib/react/15.4.1/react-dom.min.js:14:13271
@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:23:371447
t@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:17:96
@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:17:451
@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:17:2
requests.ts:160:24
20:03:59.139 Object { readyState: 4, getResponseHeader: getResponseHeader(), getAllResponseHeaders: getAllResponseHeaders(), setRequestHeader: setRequestHeader(), overrideMimeType: overrideMimeType(), statusCode: statusCode(), abort: abort(), state: state(), always: always(), catch: catch(), 9 more… } requests.ts:162:20
error requests.ts:162:20
i https://cdn.online-go.com/lib/jquery/3.1.1/jquery.min.js:2:27978
fireWith https://cdn.online-go.com/lib/jquery/3.1.1/jquery.min.js:2:28749
A https://cdn.online-go.com/lib/jquery/3.1.1/jquery.min.js:4:14226
c/< https://cdn.online-go.com/lib/jquery/3.1.1/jquery.min.js:4:16491
20:03:59.152 Object { readyState: 4, getResponseHeader: getResponseHeader(), getAllResponseHeaders: getAllResponseHeaders(), setRequestHeader: setRequestHeader(), overrideMimeType: overrideMimeType(), statusCode: statusCode(), abort: abort(), state: state(), always: always(), catch: catch(), 9 more… } User.tsx:149:12

Visiting https://online-go.com/player/58542/, I get these errors:

20:08:35.336 /api/v1/players/58542/games/ 520 No Reason Phrase requests.ts:159:24
20:08:35.337 o/<@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:17:16365
c</t.prototype.ajax_loader@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:41:82780
c</t.prototype.update@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:41:83047
c</t.prototype.componentDidMount/<@https://cdn.online-go.com/5.1/ogs.5.1-515-g3265874.js:41:82026
requests.ts:160:24
20:08:35.340 Object { readyState: 4, getResponseHeader: getResponseHeader(), getAllResponseHeaders: getAllResponseHeaders(), setRequestHeader: setRequestHeader(), overrideMimeType: overrideMimeType(), statusCode: statusCode(), abort: abort(), state: state(), always: always(), catch: catch(), 9 more… } requests.ts:162:20
20:08:35.349 undefined PaginatedTable.tsx:177:12

Arnaud