We increased the upper limit of the set value
Increase the maximum number of characters of "Page Title> Main Title" from 30 to 90.
Increase the maximum number of characters of "Page Title> Subtitle" from 30 to 90.
Increase the numerical upper limit of "upper gap" and "lower gap" of "Page Title> Layout" from 100 to 300.
Increase the numerical upper limit of "upper gap" and "lower gap" of "Menu> Layout" from 100 to 300.