nelmon check admin up oper down attributeerror : NelmonSnmp object has no attrubute snmp_auth

[Faucon2018]

Hello,

I'm a beginner on shinken and I'm trying to check interfaces on a switch witch are admin up and oper down . So I tryed to install nelmon plugin an ran the command bellow and I have this error. Can you help me please?

/var/lib/shinken/libexec/nm_check_admin_up_oper_down -H xx.xx.xx.xx -O standard -P 3 -L authPriv -U "username" -a MD5 -A "password" -x AES -X "privatepasswordAES128" -w
Traceback (most recent call last):
File "/var/lib/shinken/libexec/nm_check_admin_up_oper_down", line 5, in
pkg_resources.run_script('nelmon==1.3.1', 'nm_check_admin_up_oper_down')
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 540, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 1462, in run_script
exec_(script_code, namespace, namespace)
File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 41, in exec_
exec("""exec code in globs, locs""")
File "", line 1, in
File "/usr/lib/python2.7/site-packages/nelmon-1.3.1-py2.7.egg/EGG-INFO/scripts/nm_check_admin_up_oper_down", line 91, in

File "/usr/lib/python2.7/site-packages/nelmon-1.3.1-py2.7.egg/EGG-INFO/scripts/nm_check_admin_up_oper_down", line 44, in main

File "build/bdist.linux-x86_64/egg/nelsnmp/snmp.py", line 275, in getnext
AttributeError: 'NelmonSnmp' object has no attribute 'snmp_auth'