warning error in server log

I am getting regular [warn] messages in my server log relating to mod_iphone_menu/legacy.php

[Fri Feb 15 08:50:26 2013] [warn] mod_fcgid: stderr: PHP Notice: Trying to get property of non-object in *******root/modules/mod_mj_iphone_menu/legacy.php on line 199
[Fri Feb 15 09:18:46 2013] [warn] (103)Software caused connection abort: mod_fcgid: ap_pass_brigade failed in handle_request function

We are currently still using Joomla 1.5.26 but at in the process of upgrading to Joomla 2.5. But this will take some time as there are many elements and articles to convert. We need to keep this site running for now.

My site is www.proficiencypost.com

Please help six this issue.

Kind regards

Wicko

mod_iphone_menu is a module from MobileJoomla 0.9.x branch, it's not supported now and we recommend you to use mod_mj_menu (Mobile Menu) module instead.

After checking modules I see many mod_(modules). Should all these be set to mj_(modules)?
Shouldn't these have been replaced on updates?
When I look to create new I don't see option to create mj_menu (Mobile Menu)

Perhaps the whole corruption has happened after update.

What version of MobileJoomla do you use?

currently running 1.2.3 mobile joomla . Site no longer says there are any updates available.

Checking for module again and see it is not listed as mj_menu in list as I expected but is available as Mobile Menu

I will check other mobile modules that are active to ensure they are all set to new.

looks like I have a massive amount of duplicate modules for all mobile versions.
I notice I now have 2 login modules. 1 of the modules gives the option to create an account which is something we do not offer as standard on this site as we offer paid subscriptions to read the articles.
I also have 2 menu modules.
Is there a list of new and old modules so I can go through and delete all the offending modules?

Many thanks

Wicko