==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.8.7
- Deployed with iRedMail Easy or the downloadable installer?
- Linux/BSD distribution name and version: Debian 7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):Apache
- Manage mail accounts with iRedAdmin-Pro? No
- PHP : 5.6
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
when i try login in my mail server via web mail : i get error message :
Connection to Storage server failed

but  when i try login via thunderbird is success. this occured when i update packages(apt-get update && apt-get upgrade)

hereby we attach the result of error message from file /var/log/mail.err
Jun 18 12:21:53 mail roundcube: <muc1420k> IMAP Error: Login failed for xx@xxxxx.id line 193 (POST /mail/?_task=login&_action=login)
Jun 18 12:21:57 mail roundcube: <muc1420k> IMAP Error: Login failed for xx@xxxxx.id from 2404:1b8:10:0:f5:ac9:8227:1b89. Could not connect to ssl://localhost:993: Unknown reason in /usr/share/apache2/mailplus/program/lib/Roundcube/rcube_imap.php on line 193 (POST /mail/?_task=login&_action=login)
Jun 18 12:28:26 mail roundcube: <8q180mr3> IMAP Error: Login failed for xx@xxxxx.id from 2404:1b8:10:0:107b:b827:f02f:5a11. Could not connect to ssl://localhost:993: Unknown reason in /usr/share/apache2/mailplus/program/lib/Roundcube/rcube_imap.php on line 193 (POST /mail/?_task=login&_action=login)
Jun 18 12:49:13 mail roundcube: <ub465lo5> IMAP Error: Login failed for xx@xxxxx.id from 2404:1b8:10:0:8016:5e11:b0f:266e. Could not connect to ssl://localhost:993: Unknown reason in /usr/share/apache2/mailplus/program/lib/Roundcube/rcube_imap.php on line 193 (POST /mail/?_task=login&_action=login)

Anyone can help me on this? I would very much apreciate it.

thanks