Error When Connecting to Sharepoint: The service returned an invalid token.

[Anonymous]

This was not an issue before. The data refreshed fine when connected to a sharepoint file. Now, it asked me to reenter my credentials, but it won't work now. This error comes up: 'The service returned an invalid token. Please contact your IT admisntrator if this issue persists". 

If anyone knows how to fix this, please let me know.

[v-lili6-msft]

hi  @Anonymous 

Please check if the token your used has expired or been revoked by admin.

then clear the permission and retry it again.

Regards,

Lin