Hello Developers i'm using office 365 Authentification previously the authentification works fine but when i checked this day i couldn't authentificat and i receive this message
5e2eaa6b-f138-xxxxxxx-90bda0701e79 - LoggerBase.cs: ADAL PCL.iOS with assembly version '3.19.8.16603', file version '3.19.8.16603' and informational version '60156f308468ccbe517904fbb43a8a763434aee' is running...
5e2eaa6b-f138-xxxxxxxxf-90bda0701e79 - LoggerBase.cs: === Token Acquisition started:
CacheType: null
Authentication Target: User
, Authority Host: login.windows.net
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 - LoggerBase.cs: Loading from cache.
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 - LoggerBase.cs: Looking up cache for a token...
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 - LoggerBase.cs: No matching token was found in the cache
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 - LoggerBase.cs: Looking up cache for a token...
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 - LoggerBase.cs: No matching token was found in the cache
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 - LoggerBase.cs: Looking up cache for a token...
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 Retrying one more time..
5e2eaa6b-xxxxxxxx-8a7f-90bda0201e76 Retry Failed, Exception type: System.Net.Http.HttpRequestException
ntityModel.Clients.ActiveDirectory.AdalServiceException, ErrorCode: invalid_grant, StatusCode: 400 ---> Exception type: System.Net.Http.HttpRequestException ---> Exception type: Microsoft.IdentityModel.Clients.ActiveDirectory.AdalException, ErrorCode: {"error":"invalid_grant","error_description":"AADSTS54005: OAuth2 Authorization code was already redeemed, please retry with a new valid code or use an existing refresh token.\r\nTrace ID: b650aa5e-d131-453d-9ed2-f9b6aa60c500\r\nCorrelation ID: 5e2eaa6b-f138-xxxxxxxx-90bda0701e79\r\nTimestamp: 2019-03-20 16:18:22Z","error_codes":[54005],"timestamp":"2019-03-20 16:18:22Z","trace_id":"b650aa5e-xxxxxxxxxx-9ed2-f9b6aa60c500","correlation_id":"5e2eaa3b-f138xxxxxxx-90bda0701e79"}
some help please Thank you .