connection rejected

license problem?

""#
[ ] WebGrab++ license request and update log
[ ] 2022/07/11 19:10
[ ] Job finished at 11/07/2022 19:10:25 done in 0s
[Critical]
One or more errors occurred. (Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.)
[Critical]
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at System.Threading.Tasks.Task`1.get_Result()
at WG.common.azure.Azure_Access.DownloadFile(CloudFileDirectory cfd, String filename, String& content, DateTime& lastmodified, Boolean& pass)
at  .―..ctor(Dictionary`2 , Boolean , Boolean , Boolean )
at  . ..ctor(String )
at  .․. (String[] )
[Critical] Unhandled Exception
[Critical] For detailed info, see log file C:\Users\NourBelaid\AppData\Local\WebGrab+Plus\WGLicense.log.txt
[Critical] Execution stopped

i don't how to solve