Some Biomodels SBML files can' be converted between L2 and L3 SBML version
The error which you get is:
Caused by: com.ctc.wstx.exc.WstxIOException: Invalid UTF-8 middle byte 0x72 (at char #4362, byte #3999) at com.ctc.wstx.sr.StreamScanner.constructFromIOE(StreamScanner.java:637) at com.ctc.wstx.sr.StreamScanner.loadMoreFromCurrent(StreamScanner.java:1068) at com.ctc.wstx.sr.StreamScanner.parseLocalName2(StreamScanner.java:1878) at com.ctc.wstx.sr.StreamScanner.parseLocalName(StreamScanner.java:1838) at com.ctc.wstx.sr.BasicStreamReader.handleNsAttrs(BasicStreamReader.java:3085) at com.ctc.wstx.sr.BasicStreamReader.handleStartElem(BasicStreamReader.java:3036) at com.ctc.wstx.sr.BasicStreamReader.nextFromTree(BasicStreamReader.java:2912) at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1115) at org.codehaus.stax2.ri.Stax2EventReaderImpl.nextEvent(Stax2EventReaderImpl.java:255) at org.sbml.jsbml.xml.stax.SBMLReader.readXMLFromXMLEventReader(SBMLReader.java:611) at org.sbml.jsbml.xml.stax.SBMLReader.readSBMLFromStream(SBMLReader.java:542) at org.sbml.jsbml.xml.stax.SBMLReader.readSBMLFromStream(SBMLReader.java:552) at org.sbml.jsbml.SBMLReader.readSBMLFromStream(SBMLReader.java:251) at org.sbml.jsbml.SBMLReader.read(SBMLReader.java:128) at lcsb.mapviewer.converter.model.sbml.SbmlParser.createModel(SbmlParser.java:67) ... 97 more