Error in Scheduled refresh; Data Source written weirdly

Hello,

I am hoping you can assist me with the below issue,

We are using Power BI Report Server January 2022 version. The data source stored is correct and all reports were refreshing successfully. Suddenly and since last Friday, we are occurring the following error messages in the scheduled refresh, and the data source is written weirdly:

Model can not be refreshed for files not mapped to a network share
No credentials were found for the datasource.

Note:  Also, we cannot refresh our reports on the Power BI desktop even when entering the correct data credentials.

Does this mean we need to upgrade our report server version?

I look forward to your reply,