The problem seems to be with some access rights. I disabled mod_fcgi by commenting out from /etc/apache2/plesk.conf.d/horde.conf:
# <IfModule mod_fcgid.c>
# FcgidInitialEnv PP_CUSTOM_PHP_CGI_INDEX fastcgi
# FcgidInitialEnv PP_CUSTOM_PHP_INI...
I have search this error and found solution to disable safe mode and magic quotes. It didn't help.
Added CGI_PHP_BIN /usr/bin/php-cgi to /etc/psa/psa.conf. It didn't help.
Hello!
After last autoupdate of panel (v. 11.5.30) all webmail applications stopped working. I have tried to remove horde and roundcube, drop horde db, remove horde directory from /etc/psa-webmail and reinstall horde but it doesn't help. I just get error:
(104)Connection reset by peer...