Error (MSG): Got error 28 from table handler

Problem in Moregroupware found!
Version (config.inc.php): 0.7.3 - Finally
Version (version.inc.php): 0.7.3 - Finally
PHP version: 4.2.3
PHP OS: Linux
register_globals: 1
magic_quotes_gpc: 1
safe_mode: 0
sql.safe_mode: 0
Server software: Apache-AdvancedExtranetServer/1.3.26
(Mandrake Linux/6mdk) PHP/4.2.3 mod_ssl/2.8.10
OpenSSL/0.9.6g
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1;
en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7
session.use_trans_sid: 1
session.auto_start: 0
file_uploads: 1
upload_max_filesize: 2M
upload_tmp_dir:
memory_limit:
post_max_size: 8M
max_execution_time: 30
max_input_time: 0
magic_quotes_runtime: 0
Database: mysql / 3.23.52 (3.23.52)
Program: /moregroupware/index.php
File: /var/www/html/moregroupware/include/userfunc.inc.php
File revision: 1.95
Line: 254

Error (SQL):
SELECT * FROM mgw_configtags LEFT JOIN mgw_config ON
mgw_configtags.configtagname=mgw_config.configtagname
WHERE mgw_configtags.modulename='general' AND
mgw_config.userid=5 OR
mgw_configtags.modulename='general' AND
mgw_config.userid=0 ORDER BY mgw_config.userid,
mgw_config.serialnr

Error (MSG):
Got error 28 from table handler

Dump:
POST:

Array
(
[MGWSESSION] => e9343e1a8abf17398ae1ef67223bdf54
[encrypted_pwd] => c8050f1fbf467428a2d9863a86aee3d4
[language] => es
[login] => rc00899
[password] =>
[loginbutton] => Acceder
)

GET:

Array
(
)

Please report this error to our Bugtracker on
sourceforge.net. Make sure to include the complete
output on this screen into the bug report, along with a
description of the steps that led to the error. Thanks
for using moregroupware!