There are several things that could cause this, and most of them have been covered in these forum posts. I would recommend looking through the suggestions there and checking what's relevant for you:

• https://community.mendix.com/link/space/connectors/questions/122758 Teamcenter - Failed to get an HTTP response
• https://community.mendix.com/link/space/teamcenter/questions/133620 Teamcenter Connector

Your Teamcenter URLs are probably wrong

It looks like you are attempting to connect to the Teamcenter web client, when you should be connecting to the Teamcenter server

Find out what the correct 4 tier url and fms urls are