Browser compatibility

Hello,

I have been using transposh for a while now but I really need you help since I am running through some problems now. I have some issues regarding switching between languages in different browsers
http://pitupi.de/ is my website and under the banners there is a video and on the right side there is some text which I have put for both languages englisht and german using tags [tp][/tp] as I have done with the rest of the text however for some reason this specific text stays in german even when switching languages in mozilla and safari but on chrome works perfectly.

Also there is a mobile verison of the site, you can view it from the desktop version just narrow your browswer dimensions you see the menu that shranks into some icon and when you click it the menu expands, the bottom line of the menu is the language switching using german and english flags, however their apper on google chrome only and not in mozilla.

Can you please check it and support me!
Please please some help needed, it is live and people are complaining about this issues.

https://ww.wp.xz.cn/plugins/transposh-translation-filter-for-wordpress/