PHP Errors utf8.class.php and lib utf8.class UTF-7 to UTF-8

[lacri]

I recieved this error on errors log file

PHP Error: Failed to open map file for ISO-8859 in /var/www/htdocs/roundcube/program/lib/utf8.class.php on line 0

and
this error

PHP Error: Could not convert string from UTF-7 to UTF-8. Make sure iconv is installed or lib/utf8.class is available in /var/www/htdocs/roundcube/program/include/main.inc on line 0

iconv is installed

[alec]

The first error is normal, 'ISO-8859' isn't a proper charset name. The second is probably because of wrong characters in the message (not matching UTF-7 encoding). For utf7 to utf8 conversion are used functions from lib/utf7.inc (if mbstring isn't installed). Iconv is not used for utf-7. Attach sample message.

[lacri]

Replying to alec:

For utf7 to utf8 conversion are used functions from lib/utf7.inc (if mbstring isn't installed). Iconv is not used for utf-7. Attach sample message.

Sorry i have no sample message :( i will test this to reproduce this error.
mbstring is installed and enabled

[lacri]

Replying to lacri:

Replying to alec:

For utf7 to utf8 conversion are used functions from lib/utf7.inc (if mbstring isn't installed). Iconv is not used for utf-7. Attach sample message.

Sorry i have no sample message :( i will test this to reproduce this error.
mbstring is installed and enabled

I have reproduce this
Step 1 compose a new HTML or Text message with microsoft outlook in UTF-7 with all Chars, Numbers and Sings from Keyboard and send to an RoundCube E-Mail Account
Step 2 open RoundCube and open the new incoming UTF-7 message the Message Display are very corrupt.
Step 3 Open RC error Log the Error Message is

PHP Error: Could not convert string from UTF-7 to UTF-8. Make sure iconv is installed or lib/utf8.class is available in /var/www/htdocs/roundcube/program/include/main.inc on line 0 (GET /roundcube/?_task=mail&_action=preview&_uid=150&_mbox=INBOX&_framed=1)

see attached Files

[alec]

Fixed in [a5897a3e].

[lacri]

thx alec now works fine.