Hi , when i try to print the report i made (am using the version 5.8.1), i got this error :
Traceback (most recent call last):
File "/trytond-5.8.7-py3.8.egg/trytond/wsgi.py", line 116, in dispatch_request
return endpoint(request, **request.view_args)
File "/trytond-5.8.7-py3.8.egg/trytond/protocols/dispatcher.py", line 47, in rpc
return methods.get(request.rpc_method, _dispatch)(
File "/trytond-5.8.7-py3.8.egg/trytond/wsgi.py", line 83, in auth_required
return wrapped(*args, **kwargs)
File "/trytond-5.8.7-py3.8.egg/trytond/protocols/wrappers.py", line 131, in wrapper
return func(request, pool, *args, **kwargs)
File "/trytond-5.8.7-py3.8.egg/trytond/protocols/dispatcher.py", line 181, in _dispatch
result = rpc.result(meth(*c_args, **c_kwargs))
File "/trytond-5.8.7-py3.8.egg/trytond/report/report.py", line 169, in execute
suffix = '-'.join(r.rec_name for r in records[:5])
TypeError: 'NoneType' object is not subscriptable
any help please ; thank you.