Error in process_response

[bhishwor]

Hi, i am having issue to accessing Microsoft Library. It was working fine but suddenly it stop working and throws an error. r code: library(Microsoft365R)

list_sharepoint_sites()

site <-get_sharepoint_site('') siteF<-get_sharepoint_site('') siteR<-get_sharepoint_site('')

siteR$list_drives()

drv<-site$get_drive('')

drvPR<-site$get_drive('')

drvFin<-siteF$get_drive('')

drvEv<-siteR$get_drive('')

drvFin$list_files()

Error Message : Loading Microsoft Graph login for default tenant Error in process_response(res, match.arg(http_status_handler), simplify) : Forbidden (HTTP 403). Failed to complete operation. Message: Access denied.

Can you please let me know how to fix this.