Hi Team, i am from salesforce and our clients is getting this errors very frequently :

{"error":{"message":"Error validating access token: Session has expired on Saturday, 15-Jun-24 11:08:34 PDT. The current time is Monday, 26-Aug-24 16:46:44 PDT.","type":"OAuthException","code":190,"error_subcode":463,"fbtrace_id":"AJP7Kk7S5hHc6Fz34j3FWZV"}}

why this happens when we are using a long lived token ? it should stay active because we are using the token each day. this is an example of one of the clients. can you please tell me using the fbtrace_id, what can cause this issue ?