The error is: “API Key has been blocked by Administrator” which doesn’t say if it’s explicitly OS related but since they stopped using Google Maps in favour of OSM because of Google’s change of terms it’s likely.
There’s this JavaScript error: OpenSpace is not defined at mapPack.js:129 (anonymous) @ mapPack.js:129
Which is this line (my bold):
var gMap,osMap,extBox,bOpen=false,mSrc=”MAP”,findPt=0,gMarker,gdir,gpl,opl,undoMngr,sCur,eFlush=false,startMarker,endMarker,gMove=false,osMove=false,bOSEdit=false,dragEditor,ctrlKey=false,hpID=0,hpIcon,seed,rteIcon,sha_lib_loaded=false,bLogon=false,lastRname,lastRdesc,mapState=0,distance=0,rData=[],ple,reqInProg=false,ou=’mph’,path=[],lastPt,eleGraph,eBuffer=[],hPoints=[],xcnv=0.62138818,eludist=[],eluspd=[],eldist=[],eluheight=[],ycnv=3.2808399,prRte,prId,prReq,prMkrArr=[],mflg=0,hvMkr,adClicked=false,gridProj=new OpenSpace.GridProjection(),BO=detectBrowser();function mapLoad()
OpenSpace is the Ordnance Survey Javascript library. It was replaced at the start of this month by a new API – https://www.ordnancesurvey.co.uk/business-government/products/openspace