unexpected message

[Arphaxad]

Hello,
When I created my Virtuemart shop I have the following message on my page and I do not know what to do. Can you help me?
The message is:

         Exception in loadConfig for unserialize hidemainmenu b: 0;
         To avoid this message, enter your virtuemart config and save it just one time
I can not get rid of
Joomla 2.5
Virtuemart 2.020b
Excuse my english I'm french
Thank you

[jenkinhill]

http://forum.virtuemart.net/index.php?topic=112999.0

[Arphaxad]

Helo Kelvin,

my php is version : 3.4.9
Joomla : 2.5.9
Virtuemart : 2.0.20b

Thank you for your help.

[jenkinhill]

The solution for your problem is in the message at http://forum.virtuemart.net/index.php?topic=112999.0

[Arphaxad]

Thank you Kelvyn ! I load Virtuemart 2.0.2 (not 2.0.20b) and it works perfectly.

[jenkinhill]

Do not use 2.0.2 - it is very old and known to be insecure - unless you quoted the wrong number and have 2.0.20

[Arphaxad]

Hello Kelvyn,
it works now with VM 2.0.20b
I did this: "Deinstall JSN PowerAdmin. Clear Cache. Erase Sessions in Database. Logout and login again. Config Go to Virtuemart. Oz Save. Everything is fine now"
As stated in the link you gave me.
thank you