Danke für die Rückmeldung - habe das mal getan (bin neu in OXID) und folgendes entdeckt, was das Problem ist.
Hier handelt es sich offensichtlich um eine falsche Feldbeziehung, die durch CAO-Factura ausgelöst wurde (bin mir aber nicht sicher):
oxConnectionException-oxException (time: 2017-12-02 12:17:06): [1054]: mysql error: [1054: Unknown column ‘oxv_oxarticles_de.coi_caoid’ in ‘field list’] in EXECUTE (select oxv_oxarticles_de.oxid, oxv_oxarticles_de.oxshopid, oxv_oxarticles_de.oxparentid, oxv_oxarticles_de.oxactive, oxv_oxarticles_de.oxactivefrom, oxv_oxarticles_de.oxactiveto, oxv_oxarticles_de.oxartnum, oxv_oxarticles_de.oxean, oxv_oxarticles_de.oxdistean, oxv_oxarticles_de.oxmpn, oxv_oxarticles_de.oxtitle, oxv_oxarticles_de.oxshortdesc, oxv_oxarticles_de.oxprice, oxv_oxarticles_de.oxblfixedprice, oxv_oxarticles_de.oxpricea, oxv_oxarticles_de.oxpriceb, oxv_oxarticles_de.oxpricec, oxv_oxarticles_de.oxbprice, oxv_oxarticles_de.oxtprice, oxv_oxarticles_de.oxunitname, oxv_oxarticles_de.oxunitquantity, oxv_oxarticles_de.oxexturl, oxv_oxarticles_de.oxurldesc, oxv_oxarticles_de.oxurlimg, oxv_oxarticles_de.oxvat, oxv_oxarticles_de.oxthumb, oxv_oxarticles_de.oxicon, oxv_oxarticles_de.oxpic1, oxv_oxarticles_de.oxpic2, oxv_oxarticles_de.oxpic3, oxv_oxarticles_de.oxpic4, oxv_oxarticles_de.oxpic5, oxv_oxarticles_de.oxpic6, oxv_oxarticles_de.oxpic7, oxv_oxarticles_de.oxpic8, oxv_oxarticles_de.oxpic9, oxv_oxarticles_de.oxpic10, oxv_oxarticles_de.oxpic11, oxv_oxarticles_de.oxpic12, oxv_oxarticles_de.oxweight, oxv_oxarticles_de.oxstock, oxv_oxarticles_de.oxstockflag, oxv_oxarticles_de.oxstocktext, oxv_oxarticles_de.oxnostocktext, oxv_oxarticles_de.oxdelivery, oxv_oxarticles_de.oxinsert, oxv_oxarticles_de.oxtimestamp, oxv_oxarticles_de.oxlength, oxv_oxarticles_de.oxwidth, oxv_oxarticles_de.oxheight, oxv_oxarticles_de.oxfile, oxv_oxarticles_de.oxsearchkeys, oxv_oxarticles_de.oxtemplate, oxv_oxarticles_de.oxquestionemail, oxv_oxarticles_de.oxissearch, oxv_oxarticles_de.oxisconfigurable, oxv_oxarticles_de.oxvarname, oxv_oxarticles_de.oxvarstock, oxv_oxarticles_de.oxvarcount, oxv_oxarticles_de.oxvarselect, oxv_oxarticles_de.oxvarminprice, oxv_oxarticles_de.oxvarmaxprice, oxv_oxarticles_de.oxbundleid, oxv_oxarticles_de.oxfolder, oxv_oxarticles_de.oxsubclass, oxv_oxarticles_de.oxsort, oxv_oxarticles_de.oxsoldamount, oxv_oxarticles_de.oxnonmaterial, oxv_oxarticles_de.oxfreeshipping, oxv_oxarticles_de.oxremindactive, oxv_oxarticles_de.oxremindamount, oxv_oxarticles_de.oxamitemid, oxv_oxarticles_de.oxamtaskid, oxv_oxarticles_de.oxvendorid, oxv_oxarticles_de.oxmanufacturerid, oxv_oxarticles_de.oxskipdiscounts, oxv_oxarticles_de.oxrating, oxv_oxarticles_de.oxratingcnt, oxv_oxarticles_de.oxmindeltime, oxv_oxarticles_de.oxmaxdeltime, oxv_oxarticles_de.oxdeltimeunit, oxv_oxarticles_de.oxupdateprice, oxv_oxarticles_de.oxupdatepricea, oxv_oxarticles_de.oxupdatepriceb, oxv_oxarticles_de.oxupdatepricec, oxv_oxarticles_de.oxupdatepricetime, oxv_oxarticles_de.oxisdownloadable, oxv_oxarticles_de.oxshowcustomagreement, oxv_oxarticles_de.coi_caoid, oxv_oxarticles_de.caoupdate from oxv_oxarticles_de where 1 and oxv_oxarticles_de.oxparentid = ‘’ LIMIT 0, 10, Array) with user