I need help!
I have installed Mobile Joomla some days ago and created a mobile website for it. That seemd to work fine, until I discovered that part of my normal website was gone since then. I decided to uninstall Mobile Joomla and now my whole website is GONE.
I don't even have access to my site anymore with Joomla as administrator.

Anyone?

What is URL of your site?

www.aione.it

OK. From response headers it seems that Joomla starts to work, creates session data, sets some cookies (by joomfish), and then stops with "500 Internal Server Error".
Do you have corresponding error messages in error_log?

I don't manage to attach the error log, but it is full of today's errors, like this:

[Tue Feb 28 21:58:22 2012] [error] [client 207.46.13.117] PHP Fatal error: require_once() [<a href='function.require'>function.require</a>]: Failed opening required '/home/mc9661/public_html/administrator/components/com_mobilejoomla/mobilejoomla.class.php' (include_path='.:/usr/share/php5:/usr/share/php') in /home/mc9661/public_html/plugins/system/mobilebot.php on line 39
[Tue Feb 28 21:59:51 2012] [error] [client 207.46.13.117] PHP Warning: require_once(/home/mc9661/public_html/administrator/components/com_mobilejoomla/mobilejoomla.class.php) [<a href='function.require-once'>function.require-once</a>]: failed to open stream: No such file or directory in /home/mc9661/public_html/plugins/system/mobilebot.php on line 39
[Tue Feb 28 21:59:51 2012] [error] [client 207.46.13.117] PHP Fatal error: require_once() [<a href='function.require'>function.require</a>]: Failed opening required '/home/mc9661/public_html/administrator/components/com_mobilejoomla/mobilejoomla.class.php' (include_path='.:/usr/share/php5:/usr/share/php') in /home/mc9661/public_html/plugins/system/mobilebot.php on line 39


They don't mean much to me, I hope they do to you!

Just make plugins/system/mobilebot.php to be empty, and then try to install/uninstall MJ again.

Did delete the plugins. Site is back!!
Thanks a million