Error: Unbalanced input passed to document
at ve.dm.Document.prototype.buildNodeTree URL1:229:619
at ve.dm.Document.prototype.getDocumentNode URL1:227:792
at ve.dm.InternalList.prototype.getListNode URL1:94:871
at ve.dm.Document.prototype.getDocumentRange URL1:227:934
at makePlain URL2:390:638
at ve.ce.MWWikitextSurface.prototype.afterPasteInsertExternalData URL2:391:450
at ve.ce.Surface.prototype.afterPasteAddToFragmentFromExternal URL1:486:215
at ve.ce.Surface.prototype.afterPaste URL1:479:33
at ve.ce.Surface.prototype.onPaste/< URL1:474:859

URL1: https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.base%2Ccore%2Cdiffing%2Cmediawiki%2Cmwcore%2Csanitize%2Cswitching%2Cwelcome%7Cext.visualEditor.core.utils&skin=vector&version=1dwmw
URL2: https://www.mediawiki.org/w/load.php?lang=en&modules=ext.visualEditor.core.desktop%7Cext.visualEditor.desktopTarget%2Cicons%2Clanguage%2Cmwalienextension%2Cmwextensions%2Cmwformatting%2Cmwgallery%2Cmwimage%2Cmwlanguage%2Cmwlink%2Cmwmeta%2Cmwtransclusion%2Cmwwikitext%7Cext.visualEditor.mwextensions.desktop%7Cext.visualEditor.mwimage.core&skin=vector&version=1avtr