Here's how to disable the creation user button that is in the login page for Xeams:

1. Go to your config folder for Xeams. This is usually located in C:\Xeams\config in Windows, or /opt/Xeams/config in Linux.

2. Look for a file called AppConfig.xml. Open this file with a text editor, such as notepad.

3. There should be a line that looks like the following: <loginCreationDisabled>false</loginCreationDisabled>.

4. Set the value from false to true.

5. Save the file and restart Xeams. The "create account" link should now disappear.