Stream is Offline ALWAYS

Hi @jess allow me spamming here ;
just enabled cloud transcoading and tv channels from the admin panel ;
obs studio reports me the following message now while it wast streaming before ;
Could not access the specified channel or stream key, please double-check your stream key. If it is correct, there may be a problem connecting to the server.
the tv platform studio shows the following error;
The requested URL /apps/studioV3/v3.2.1/index.html was not found on this server.
Apache/2.2.15 (CentOS) Server at mydomain.com Port 80
nothing works with me so far i started to feel frustrated . what am i missing now?
Thanks.