Gantt chart not displaying

[Gantt chart not displaying]

Hi, 

 

I need help to resolv a problem during generation Gantt chart.

 

this is the XML code:

{<chart dateformat='mm/dd/yyyy' outputdateformat='hh:mn' caption='Planejamento Laser' subcaption='De 30/05/2016 à 06/06/2016' showborder='0'>
<categories>
<category start='30/05/2016 00:00:00' end='30/05/2016 23:59:59' label='30/05/2016' />
<category start='31/05/2016 00:00:00' end='31/05/2016 23:59:59' label='31/05/2016' />
<category start='01/06/2016 00:00:00' end='01/06/2016 23:59:59' label='01/06/2016' />
<category start='02/06/2016 00:00:00' end='02/06/2016 23:59:59' label='02/06/2016' />
<category start='03/06/2016 00:00:00' end='03/06/2016 23:59:59' label='03/06/2016' />
<category start='04/06/2016 00:00:00' end='04/06/2016 23:59:59' label='04/06/2016' />
<category start='05/06/2016 00:00:00' end='05/06/2016 23:59:59' label='05/06/2016' />
</categories>
<categories align='center'>
<category start='30/05/2016 00:00:00' end='30/05/2016 05:59:59' label='0 - 6' />
<category start='30/05/2016 06:00:00' end='30/05/2016 11:59:59' label='6 - 12' />
<category start='30/05/2016 12:00:00' end='30/05/2016 17:59:59' label='12 - 18' />
<category start='30/05/2016 18:00:00' end='30/05/2016 23:59:59' label='18 - 0' />
<category start='31/05/2016 00:00:00' end='31/05/2016 05:59:59' label='0 - 6' />
<category start='31/05/2016 06:00:00' end='31/05/2016 11:59:59' label='6 - 12' />
<category start='31/05/2016 12:00:00' end='31/05/2016 17:59:59' label='12 - 18' />
<category start='31/05/2016 18:00:00' end='31/05/2016 23:59:59' label='18 - 0' />
<category start='01/06/2016 00:00:00' end='01/06/2016 05:59:59' label='0 - 6' />
<category start='01/06/2016 06:00:00' end='01/06/2016 11:59:59' label='6 - 12' />
<category start='01/06/2016 12:00:00' end='01/06/2016 17:59:59' label='12 - 18' />
<category start='01/06/2016 18:00:00' end='01/06/2016 23:59:59' label='18 - 0' />
<category start='02/06/2016 00:00:00' end='02/06/2016 05:59:59' label='0 - 6' />
<category start='02/06/2016 06:00:00' end='02/06/2016 11:59:59' label='6 - 12' />
<category start='02/06/2016 12:00:00' end='02/06/2016 17:59:59' label='12 - 18' />
<category start='02/06/2016 18:00:00' end='02/06/2016 23:59:59' label='18 - 0' />
<category start='03/06/2016 00:00:00' end='03/06/2016 05:59:59' label='0 - 6' />
<category start='03/06/2016 06:00:00' end='03/06/2016 11:59:59' label='6 - 12' />
<category start='03/06/2016 12:00:00' end='03/06/2016 17:59:59' label='12 - 18' />
<category start='03/06/2016 18:00:00' end='03/06/2016 23:59:59' label='18 - 0' />
<category start='04/06/2016 00:00:00' end='04/06/2016 05:59:59' label='0 - 6' />
<category start='04/06/2016 06:00:00' end='04/06/2016 11:59:59' label='6 - 12' />
<category start='04/06/2016 12:00:00' end='04/06/2016 17:59:59' label='12 - 18' />
<category start='04/06/2016 18:00:00' end='04/06/2016 23:59:59' label='18 - 0' />
<category start='05/06/2016 00:00:00' end='05/06/2016 05:59:59' label='0 - 6' />
<category start='05/06/2016 06:00:00' end='05/06/2016 11:59:59' label='6 - 12' />
<category start='05/06/2016 12:00:00' end='05/06/2016 17:59:59' label='12 - 18' />
<category start='05/06/2016 18:00:00' end='05/06/2016 23:59:59' label='18 - 0' />
</categories>
<processes fontsize='12' isbold='1' align='left' headertext='Laser' headerfontsize='18' headervalign='bottom' headeralign='left'>
<process label='Laser 1' id='LASER 1' />
<process label='Laser 2' id='LASER 2' />
</processes>
<tasks showlabels='1' showstartdate='1'>
<task processid='LASER 1' start='30/05/2016 06:30' end='30/05/2016 10:30' label='TRACK1 E RIB 42' />
<task processid='LASER 1' start='01/06/2016 06:30' end='01/06/2016 15:30' label='TREINAMENTO (INFIELD CALL PROBE API) EXTERNO NA API.' />
<task processid='LASER 1' start='02/06/2016 06:30' end='02/06/2016 11:30' label='TREINAMENTO (INFIELD CALL PROBE API) EXTERNO NA API.' />
</tasks> 
</chart> }