On the oxauth log the only interesting logs are:
2022-02-07 09:04:19,944 INFO [qtp1831477404-23] [org.gluu.oxauth.auth.Authenticator] (Authenticator.java:278) - Authentication success for Client: 'c57b5216-e2ea-49e4-aa72-49bbb0dce865'
2022-02-07 09:04:20,024 WARN [qtp1831477404-23] [org.gluu.oxauth.model.crypto.AbstractCryptoProvider] (AbstractCryptoProvider.java:190) -
WARNING! Expired Key is used, alias: 3ea736e5-847f-4cb2-bcfa-63723ff3ad88_sig_rs256
Expires On: 2022-01-28 13:25:37
Today's Date: 2022-02-07 09:04:20
2022-02-07 09:04:20,096 INFO [qtp1831477404-88] [org.gluu.oxauth.auth.Authenticator] (Authenticator.java:278) - Authentication success for Client: 'c57b5216-e2ea-49e4-aa72-49bbb0dce865'
2022-02-07 09:04:20,211 ERROR [qtp1831477404-88] [org.gluu.oxauth.service.ScopeService] (ScopeService.java:271) - Failed to get claim because claim name is not set for attribute, id: inum=6493,ou=attributes,o=gluu
2022-02-07 09:06:57,657 INFO [qtp1831477404-20] [org.gluu.oxauth.auth.Authenticator] (Authenticator.java:278) - Authentication success for Client: 'c57b5216-e2ea-49e4-aa72-49bbb0dce865'
Maybe this helps tracing the problem.