vmError: Model Userfields, state with id COM_VIRTUEMART_USER_FORM_ST_L not found

[YodaStudio]

Hello everybody.

Today I updated an old e-commerce (Joomla v.3.9.24, VirtueMart v.3.8.6) and now, as soon as login as a customer, I get the error message in the subjet.
Same issue discussed here, but I don't know how they solved it.
Can anyone help me with that?

Thanks

[jenkinhill]

"(Joomla v.3.9.24, VirtueMart v.3.8.6)"  I assume these are the current versions, but what did you update from? Have you also updated templates or OPC or other third party extensions?

[YodaStudio]

Hello Kelvyn.

I updated from Joomla v.3.9.2 and VirtueMart v.3.4.2. I also updated template and extensions.
I noticed that this alert is shown only with super users, not with regular customers. I suppose it's a field super users don't fill while customers do it when they register, but I'm not sure about it and I really can't find that empty field.

Regards.

[jenkinhill]

This:   COM_VIRTUEMART_USER_FORM_ST_LABEL="Address Nickname"