FP Match "Syntax Error" CRASH

ERROR GAME DETAILS:

uid=4624728

gameID=1633750

ERROR DETAIL PICTURE:

ERROR BOX TITLE:

An error occured

Syntax error, unrecognized expression: [sort_by=upgrades=645]

ERROR BOX BODY:

----

Syntax error, unrecognized expression: [sort_by=upgrades=645]

Error: Syntax error, unrecognized expression: [sort_by=upgrades=645]

at Function.ga.error (http://www.callofwar.com/ww2-dev/js/external/jquery/jquery-3.1.0.min.js?bust=1475306004:2:13126)

at ga.tokenize (http://www.callofwar.com/ww2-dev/js/external/jquery/jquery-3.1.0.min.js?bust=1475306004:2:19115)

at Function.ga [as find] (http://www.callofwar.com/ww2-dev/js/external/jquery/jquery-3.1.0.min.js?bust=1475306004:2:7068)

at r.find (http://www.callofwar.com/ww2-dev/js/external/jquery/jquery-3.1.0.min.js?bust=1475306004:2:24591)

at r.fn.init (http://www.callofwar.com/ww2-dev/js/external/jquery/jquery-3.1.0.min.js?bust=1475306004:2:25081)

at r (http://www.callofwar.com/ww2-dev/js/external/jquery/jquery-3.1.0.min.js?bust=1475306004:2:601)

at hup.ui.ProvinceListWidget.markSortTabActive (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1475306004:81969:11)

at hup.ui.ProvinceListWidget.setMode (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1475306004:82227:14)

at hup.ui.ProvinceListWidget.onResize (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1475306004:82546:14)

at lzr.ui.ResizeAwareWidget.windowPositionAdjustment (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1475306004:60229:10)

Details:

Error: Syntax error, unrecognized expression: [sort_by=upgrades=645]

WHEN THIS ERROR OCCURRED:

I was clicking on the "close" button of the advertisement sidebar.

SPECIAL NOTE:

none