Keep getting errors

[hesbas]

I Keep getting errors in:

Layout » Templates » Edit Template: Basis sjabloon

Notice: Only variable references should be returned by reference in /home/1828/muurkrant.org/HTML/cms/lib/adodb_lite/adodbSQL_drivers/mysql/mysql_pear_module.inc on line 83

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/lib/adodb_lite/adodbSQL_drivers/mysql/mysql_pear_module.inc:83) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 161

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/lib/adodb_lite/adodbSQL_drivers/mysql/mysql_pear_module.inc:83) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 164

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/lib/adodb_lite/adodbSQL_drivers/mysql/mysql_pear_module.inc:83) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 167
I Keep getting errors in:

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/lib/adodb_lite/adodbSQL_drivers/mysql/mysql_pear_module.inc:83) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 168

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/lib/adodb_lite/adodbSQL_drivers/mysql/mysql_pear_module.inc:83) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 171

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/lib/adodb_lite/adodbSQL_drivers/mysql/mysql_pear_module.inc:83) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 176

And also in:

Extensions » Tags

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/plugins/function.recentupdates.php:95) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 161

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/plugins/function.recentupdates.php:95) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 164

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/plugins/function.recentupdates.php:95) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 167

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/plugins/function.recentupdates.php:95) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 168

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/plugins/function.recentupdates.php:95) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 171

Warning: Cannot modify header information - headers already sent by (output started at /home/1828/muurkrant.org/HTML/cms/plugins/function.recentupdates.php:95) in /home/1828/muurkrant.org/HTML/cms/lib/classes/class.admintheme.inc.php on line 176

I am using version 0.12

Thanx all

Bas

[jelle]

The modify headers error is secondary, it is cause by another error popping up somwhere else, ignore those.
On the other errors: I wouldn't know, sorry.
Is there something special in the template? Did you edit and sourcecode?

[Ted]

What version of php is this?

[hesbas]

Thanx already!

I think I found the source of the errors: the Gastbuch module. Disableing it, and the errrs are gone!
I am tot that good with PhP, so I do not know hou to solve it.

As far as I know its running PhP 4.41, Apache xx, and MySQL 3.23. Its all running on Linux.
I'm not able to update one of these, because ist hosted by an ISP.

I did not modify any of the source code, just added modules and a new theme.