We have created solution to create a session for TW users, it worked for years. But last we started to get issues. The main problem is when we post the new session we get an answer:
"error":"internal_error","error_description":"Unspecified error. Please try again later","error_code":3
I get the same answer if I test it in Postman (adding screenshot)
P.S. all other requests like, get users, get all sessions etc. works ok.
Maybe you know what could be wrong? Thanks