Hi
I'm trying to add new products, but when I save the new products I got this error message:
call_user_func_array(): Argument #1 ($callback) must be a valid callback, class plgVmCustomTextinput does not have a method "plgVmOnStoreProduct"
How can I solve this problem?
And do you drive a Volvo or a Skoda? (sarcasm)
What do you think you forgot?
I'm not quite sure. :(
class plgVmCustomTextinput you find in plugin VmCustom/Textinput
Try disabled this plugin
And I think PHP8 is not for VM
And still VM 3.8.9 is beta version == not for production site
Disabling the plugin is a good idea, if you do not use it anyway.
PHP 8 should work, we removed really a lot obstacles.
I think you missed to update also the PLugins. Just use this https://dev.virtuemart.net/attachments/1305/com_virtuemart.3.8.9.10622_package_or_extract.zip which is not beta anylonger.