Invalid Jwt access Token

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Dears,

I can get the access token from the api /oauth/token

using correct grant-type, issuer, client-id, client-secret.

However when i call any api in my java Spring boot application, i got invalid token.

I’ve configured the java application with the correct audience and issuer url, and it was working before. Suddenly, now i receive invalid token error.

Please find the java configurations:

okta:
  oauth2:
    # Replace with the domain of your Auth0 tenant.
    issuer: ${OKTA_OAUTH2_ISSUER}
    # Replace with the API Identifier for your Auth0 API.
    audience: ${OKTA_AUD}

Also the error logs out of java application:

2026-02-01T10:28:07.975+02:00 DEBUG 4990 — [app] [nio-9092-exec-8] o.s.security.web.FilterChainProxy : Securing POST /users/user/followers
2026-02-01T10:28:08.009+02:00 DEBUG 4990 — [app] [nio-9092-exec-8] o.s.s.o.s.r.a.JwtAuthenticationProvider : Failed to authenticate since the JWT was invalid

Please help