Exception in loadConfig for unserialize hidemainme

Dobry den,
Prosim poradte mi. Po upgradovani verzie VM na verziu 2.0.20b mi zacala na strankach, kde sa zobrazuje VM alebo jeho komponenty zobrazovat takato chybova hlaska :

Exception in loadConfig for unserialize hidemainmenu b:0;
To avoid this message, enter your virtuemart config and just save it one time

Nemate s tym niekto skusenost ?

Som uplny zaciatocnik, ale napadla ma aj taka moznost, ze ak si s tym neporadim ci je moznost downgrade VM na povodnu verziu.
Je to mozne ?

Vsak vam to pise co mate udelat, aby jste se te hlasky zbavil.
"To avoid this message, enter your virtuemart config and just save it one time"

Mate pravdu, a dokonca ked na tu hlasku kliknem, presmeruje ma to rovno do nastaveni VirtueMartu. Ale to nastavenie ma niekolko stranok a neviem co konkretne treba na tej konfiguracii zmenit a ulozit.

nic netreba menit, jen kliknete na Ulozit a zavrit.

To som skusal ako prve, ale nepomaha to. Ono sice tie zmeny ulozi, ale s nasledovnymi hlaskami :

Exception in loadConfig for unserialize hidemainmenu b:0;
To avoid this message, enter your virtuemart config and just save it one time
vmdebug self::$_jpConfig->lang sk_sk
vmdebug vmTime: loadConfig db no: 0.0122439861298
Exception in loadConfig for unserialize hidemainmenu b:0;
To avoid this message, enter your virtuemart config and just save it one time
vmdebug self::$_jpConfig->lang sk_sk
vmdebug vmTime: loadConfig db no: 0.00802397727966
Exception in loadConfig for unserialize hidemainmenu b:0;
To avoid this message, enter your virtuemart config and just save it one time
vmdebug self::$_jpConfig->lang sk_sk
vmdebug vmTime: loadConfig db no: 0.00725197792053
Nastavenia uložené
Exception in loadConfig for unserialize hidemainmenu b:0;
To avoid this message, enter your virtuemart config and just save it one time
vmdebug self::$_jpConfig->lang sk_sk
vmdebug vmTime: loadConfig db no: 0.0181732177734

kdyz jste aktualizoval VM a VM aio, zaktualizoval jste potom i tabulky VM pluginu?