Wordpress in different languages

I am currently working on a wordpress website in Czech language, I ran into a problem. Most of the website is in Czech. Its running good. I needed a plugin that has users and accounts that they could take care of. I started messing around with Ultimate Member (version 2.0). Most of the plugin translated, yet some things stayed in english. I also went through to translate the .mo and .po files.

As you can see, some plugin parts are in english, but the files are fully translated. Any ideas? Suggestions? It's driving me mad.

I have check the plugin 'Ultimate Member' and it does not have Czech translations. You might have to make your own translation files.

you can go to https://github.com/ultimatemember/ultimatemember and then fork the plugin. Make a czech version of https://github.com/ultimatemember/ultimatemember/blob/master/languages/ultimatemember-en_US.po named as https://github.com/ultimatemember/ultimatemember/blob/master/languages/ultimatemember-cs_CZ.po with correct translation. Submit a Pull request and the plugin maintainers will help to bring an update.

You can also make your own translations https://codex.wordpress.org/I18n_for_WordPress_Developers