Error: Call to undefined method plgVmPaymentStandard::addVarsToPushCore()

[gnfr]

Hi all, 
I have a Joomla (version 3.9.11 Stable) website with VirtueMart plugin installed (version 3.4.2). Everytime I logged to administration panel in I received a message to update 3 outdated plugins (language plugins. Our site is in spanish) . Finally I decided to updated it. But after I updated these plugins I get the following error Call to undefined method plgVmPaymentStandard::addVarsToPushCore() and cannot even enter my website store. Could you help to solve this problem? I did a search in the forum but I didn't find a thread that answers my question, so any help will be appreciated.
Please, just let me know if extra information is needed in order to help me. Thanks in advance

Regards

[GJC Web Design]

What did u update exactly?

Sounds like u updated the plugins but not the core component

Possibly if u rename   \plugins\vmpayment\standard\standard.php  to 

plugins\vmpayment\standard\standard.php___

you may be able to re-access your site

if not u probably need to unpublish the VM Standard Payment plugin directly in your database

[gnfr]

Thank you so much GJC Web Design, it worked! I just had to rename the file like you said and now the site is up again.

However, what do you mean when you said

Sounds like u updated the plugins but not the core component

I'm asking you cause I don't want this problem to happen again.

[GJC Web Design]

there is a new function in the core component ( VM3.6.0 ) called addVarsToPushCore() which is called by the VM3.6.0 plugins ( shipping & payment)

If your standard payment plugin is calling function addVarsToPushCore() then this means its version 3.6.0 -
but as it failed to find the function in the VM core this means the core is not 3.6.0

There is a bug fix VM3.6.2 to be released very soon  - I recommend you wait for this to upgrade to... 
ist the core  - then the AIO ( extensions and plugins)

[gnfr]

Ok, I get it, I'll wait then. Thanks for your help GJC. Regards!

[GJC Web Design]

http://dev.virtuemart.net/attachments/1187/com_virtuemart.3.6.2.10155.zip