[Koha-devel] {"error":"Authentication failure."} in koha 21.11

i am using koha 21.11 enable all system preference for rest api's for koha. generate secret code and client id, give full rights to patron enabled RESTBasicAuth RESTOAuth2ClientCredentials RESTPublicAnonymousRequests RESTPublicAPI but when i access http://111.68.97.170:8005/api/v1/patrons/ error show {"error":"Authentication failure."} am i missing something? also enabled plack for koha waiting for response -- *Zahid*