Use gallery and standard template at the same time

I really need some help with that, please.

No, but you could make a custom template to look however you want –

codex.www.ads-software.com/Page_Templates

Specifics depend on the theme you are using –

https://codex.www.ads-software.com/Forum_Welcome#Include_as_much_information_as_possible

That worked for me, thanks ??

I’m using the ascetica Theme and had to change the post.php.
I’ve add the line
<?php comments_template( '/comments.php', true ); // Loads the comments.php template. ?>
under // ascetica_open_content.

Might be helpful to others.

Hopefully you are using a child theme to make these changes?

https://codex.www.ads-software.com/Child_Themes

Otherwise your changes will be overwritten and lost when the theme is updated.