Github tag (release) branch deploy has stopped working?

I want to bind GitHub tag (release) branch for production deployment.
But It seems to be stopped woking now.
It worked before.
Is there any problem or something has changed?

DEPLOY LOGS
10:34:51 AM: Build ready to start
10:34:53 AM: build-image version: 2dbd444fcdce00cf06325060a8238d5ae3e86774
10:34:53 AM: build-image tag: v3.3.7
10:34:53 AM: buildbot version: d305548225ac57bb00eb5a596b0b8674e76a4681
10:34:53 AM: Fetching cached dependencies
10:34:53 AM: Starting to download cache of 254.9KB
10:34:53 AM: Finished downloading cache in 61.173252ms
10:34:53 AM: Starting to extract cache
10:34:53 AM: Failed to fetch cache, continuing with build
10:34:53 AM: Starting to prepare the repo for build
10:34:54 AM: git ref refs/heads/v0.0.0 does not exist or you do not have permission
10:34:54 AM: Failing build: Failed to prepare repo
10:34:54 AM: failed during stage ‘preparing repo’: git ref refs/heads/v0.0.0 does not exist
10:34:54 AM: Finished processing build request in 877.17833ms

Although I can jump v0.0.0@HEAD link (Github repo) from the deploy detail page.
So I wondered.

Based on the following:

It seems like our buildbot lost permissions to your repository. Can you try re-linking it as mentioned here: [Common Issue] "...does not exist or you do not have permission" with failing builds?