Maximum execution time exceeded in rcube_imap.php

[manu9]

Hello

I have roundcube 0.4.2 running on a linux computer with dovecot imap server.

Everything is fine except I can't work with folder.

When I click on settings and folders, I've got a blank page and there is an error message on the server side :
Maximum execution time of 120 seconds exceeded in /home/htdocs/roundcubemail-0.4.2/pr
ogram/include/rcube_imap.php on line 3660

Any idea ?