When you attempt to press the "Update General Settings" button, review the page and see what the form error says. In a modern browser that supports html5 such as Chrome or Firefox, the error will display itself by highlighting the form field in red.
![[Linked Image]](https://www.ubbcentral.com/forums/ubbthreads.php/ubb/download/Number/3210/filename/20200322_20-13-19.PNG)
Correct your error, then you should be able to submit the page.