report instead of fial on unknown file format

modules/textgrid/connect.xqm

@@ -216,10 +216,7 @@ declare function tgconnect:publish( $uri as xs:string,
                                 xmldb:store($targetPath || "/data", $name, $text, "text/plain")
                         return $name
                 default return
-                        error(
-                            QName("https://sade.textgrid.de/ns/error", "PUBLISH08"),
-                            "The publisher does not know how to handle " || string($meta//tgmd:format) || "."
-                            )
+                        "The publisher does not know how to handle " || string($meta//tgmd:format) || "."
 
 else
     error(