Richard Hofmänner

Hi Nayeem,

thank you for your reply.

As the site has only german as language, I installed WPML only for translating the plugin.

I uploaded the images on an other plattform.

Language of the website is managed by WPML:
https://postimg.cc/WDpbcKzB

WPML Settings Language Settings:
https://postimg.cc/fVfTFZz7

Language setting of User in WordPress Profile (doesn’t matter if it is set to German or the website preference):
https://postimg.cc/75kZmbkY

Thanks. After disabling the bootstrap css and bootstrap JS of the plugin it works now. It likely conflicted with the themes bootstrap.