Error connecting to Team Center

My application is connected to Team Center but I’m having some problems, when I try to log in Mendix sends me an error message: “A JSONObject text must begin with '{' at 1 [character 2 line 1]”, but I didn’t make any change to any archive or document.
1 answers

This is the error message you get when the login fails because it doesn’t get a valid response from the Teamcenter server. This could be because it isn’t running or you can’t access the 4-tier URL from your location