Most of buttons unavailable in web interface.

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Hi, guys. 1st of all, sorry for bad english.
I'm set roundcube+postfix+dovecot+mariadb on localhost.
But web interface unavailable. I can login, but I can't open smth in settings and options, most of buttons unavailable. What I did wrong? Pls help.

[JohnDoh]

What version/how did you install roundcube? If you installed from source did you download the JS deps? Check your browser console for JS errors.

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Rouncube ver 1.3.8.
Installed composer.
Where I can look JS errors?

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It's works.
I found a solution here https://github.com/roundcube/roundcubemail/issues/5592