Traceback (most recent call last):
  File "/trytond/protocols/jsonrpc.py", line 123, in _marshaled_dispatch
    response['result'] = dispatch_method(method, params)
  File "/trytond/protocols/jsonrpc.py", line 156, in _dispatch
    res = dispatch(*args)
  File "/trytond/protocols/dispatcher.py", line 154, in dispatch
    result = rpc.result(meth(*args, **kwargs))
  File "/trytond/model/modelview.py", line 531, in wrapper
    return func(cls, *args, **kwargs)
  File "/trytond/model/workflow.py", line 33, in wrapper
    result = func(cls, filtered, *args, **kwargs)
  File "/trytond/modules/account_invoice/invoice.py", line 1199, in open
    invoice.print_invoice()
  File "/trytond/modules/account_invoice/invoice.py", line 1121, in print_invoice
    InvoiceReport.execute([self.id], {})
  File "/trytond/modules/account_invoice/invoice.py", line 2098, in execute
    res = super(InvoiceReport, cls).execute(ids, data)
  File "/trytond/report/report.py", line 131, in execute
    type, data = cls.parse(action_report, records, data, {})
  File "/trytond/modules/account_invoice/invoice.py", line 2127, in parse
    localcontext)
  File "/trytond/report/report.py", line 280, in parse
    data = rel_report(**localcontext).render()
  File "/relatorio/templates/base.py", line 39, in render
    return self.serializer(self.events)
  File "/relatorio/templates/opendocument.py", line 854, in __call__
    self.outzip.writestr(new_info, serialized_stream)
  File "/zipfile.py", line 1131, in writestr
    zinfo.CRC = crc32(bytes) & 0xffffffff       # CRC-32 checksum
UnicodeEncodeError: 'ascii' codec can't encode characters in position 21269-21271: ordinal not in range(128)