The most direct way is to buy a license from the official Stata website. Once the transaction is complete, you will receive a via email. 2. Institutional Licenses
Are you using a or an institutional/university license ? stata license and activation key
The most common cause for this error is a . The codes are case-sensitive and often contain characters that look alike (like the letter 'O' and the number '0', or 'L' and '1'). The most direct way is to buy a