Application Error #11 When adding a new category or custom field

[gbeton]

MantisBT Version 2.25.6
Schema Version 211
PHP Version 8.1.15
Database Driver mysqli
Database Version, Description 10.3.38, 10.3.38-MariaDB-log-cll-lve

When trying to add a new custom field or category I get "Application Error #11" followed by " a neccesary field "x" was empty" where x is what I am trying to add. Any ideas anyone with something I have stupidly done wrong?

[cas]

Before clicking on the button, you need to provide the name of the custom field

[gbeton]

Thank you!

I shall hang my head in shame for the next 10 minutes or longer......

[cas]

sometimes things are easier thanm you think, happens to us all on some moment