Pagination (little) problem

Hi,

Great plugin, but there’s a little problem with the pagination. I’m using free version, and after the “Previous” word and the “Next” word, there is a square/symbol… ?!

Here’s a screenshot : http://imgur.com/SczT46c

It’s like it’s looking for a symbol, or something like that ?

In the settings, it’s just written « Previous and Next ». I tried with other words, the square is still there…

Can you help me, please ?

Kind regards.

https://ww.wp.xz.cn/plugins/post-grid/