3 Legged OAuth Flow Stuck After Retrieving Code. #9

Hello Devs,
Kindly have a look at this issue. I am having this issue in spring OAuth 2 Client library too.

Request URL: http://localhost:9200/login/oauth2/code/linkedin?code=AQT1woZ4nbC7fo5dwsrr89OnK2hOO5TNBTeWcuC03dKhWGngT-b9ETBtKh7Kz16mLCQc1FDliJZiLDeQIPIBDtUjIji30ESYgCWoPD1kiv2gSbPgUyFXCAe-ySgqckOBmSCVSvjQbp3kB8ATigTlx2N7JFUHyRE0rca2-pqAvpC-UNK2lRs8uOZxx0oOr_deSEZ25c4gl1_Az2vXjO0&state=secret534016
Request Method:
GET
Status Code:
404 Not Found
Remote Address:
[::1]:9200
Referrer Policy:
strict-origin-when-cross-origin.

Thanks.