Problems with page width (probably)

Hello,

I have a problem that probably does not directly concern GeneratPress, but is also related to it somewhere.

I use the plugin Rate my Post and display the stars at the end of a post. You can find an example at the URL below.

Unfortunately, for some inexplicable greenness on my part, the 5 stars are not always displayed in a line. At post given below (as with many other posts) they are, divided into two rows. With make posts even in 3 rows.

Can you tell me what this is and how I can fix it?

The problem affects all pages where I have GeneratePRess in use.

Thank you very much,

Sebastian