W50: Invalid unit string 'x' 8 (42.11%)

URL Network Warnings Schema Expected votlint
http://gsss.stsci.edu/webservices/vo/ConeSearch.aspx?CAT=GSC23&RA=21.0&DEC=42.0&SR=0.01&VERB=3 - 2 1.2 - ?
http://vizier.unistra.fr/viz-bin/conesearch/I/345/gaia2?RA=45.0&DEC=0.03730194242226949&SR=0.028629053431811713&VERB=3 - 32 1.4 - ?
http://wfaudata.roe.ac.uk/sdssdr7-dsa/DirectCone?DSACAT=SDSS_DR7&DSATAB=Galaxy&RA=249.9&DEC=0.0&SR=0.01&VERB=3 - 20 1.1 - ?
http://wfaudata.roe.ac.uk/sdssdr7-dsa/DirectCone?DSACAT=SDSS_DR7&DSATAB=Star&RA=249.9&DEC=0.0&SR=0.01&VERB=3 - 20 1.1 - ?
http://wfaudata.roe.ac.uk/sdssdr7-dsa/DirectCone?DSACAT=SDSS_DR7&DSATAB=PhotoObjAll&RA=249.9&DEC=0.0&SR=0.01&VERB=3 - 20 1.1 - ?
http://wfaudata.roe.ac.uk/sdssdr7-dsa/DirectCone?DSACAT=SDSS_DR7&DSATAB=PhotoObj&RA=249.9&DEC=0.0&SR=0.01&VERB=3 - 20 1.1 - ?
http://wfaudata.roe.ac.uk/twomass-dsa/DirectCone?DSACAT=TWOMASS&DSATAB=twomass_xsc&RA=218.8&DEC=-29.9&SR=0.1&VERB=3 - 20 1.1 - ?
http://wfaudata.roe.ac.uk/twomass-dsa/DirectCone?DSACAT=TWOMASS&DSATAB=twomass_psc&RA=218.8&DEC=-29.9&SR=0.1&VERB=3 - 6 1.1 - ?