yep sandbox has an issue i've been searching this issue since last week
. I think its from the ebay's dev side
https://www.reddit.com/r/Ebay/comments/10oxtq1/broken_sandbox/https://community.ebay.com/t5/Token-Messaging-Sandbox-related/Unable-to-OAuth...
It worked only once yesterday, after that i kept having this issue, when
trying to get access on ebay developer. Failed to find a valid digest in
the 'integrity' attribute for resource
'https://54b16de4c302.cdn4.forter.com/sn/54b16de4c302/sha256-aPvR...