the above part of the title of a figure doesn't show completely

Please see the attached image, as you see the above part of the title is masked. this is a ggplot (boxplot).
in this figure title is: Inferred Cell type Activity, but for instance, you cant recognize "f"
How can I fix it?

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Final_fig_box <- subplot(plot1, plot2)%>%
layout(title = "Inferred Celltype Activity")
return(Final_fig_box)
</>

Please refer to FAQ: How to do a minimal reproducible example ( reprex ) for beginners

I think it's not related to my problem.

use plotly's layout() function to set the margins you require
Setting graph size with R (plotly.com)