Only 127

Hi, I wanted to know how to change the max images at carousel allow to, because only lets a max of 127 and I need to show ALL posts of a category, not only 127, as they are thumbnails from jobseekers and there are plenty more. I´ve tryed changing this at DB table, but doesn´t let me, either at plugin options. I place for example 500 and save, and after saving the option has changed to 127.

Please, I really need this changed, maybe with a code or something.

Thank you!

https://ww.wp.xz.cn/plugins/numix-post-slider/