upgrade error to 3.6.0

[sergobrovar]

Hello
I upgraded virtemart 3.4.2 to 3.6.0. As a result, I received an error when placing an order in the cart. Fields for entering customer contact information have disappeared. You can look at the attached files. I use Joomla 3.9.11 / PHP version 7.3.6. Help solve this, please

[sergobrovar]

The VirtueMart One Page Checkout plugin is also installed. It seems like the problem is in it. But I can't determine what exactly.

[GJC Web Design]

test by unpublishing the OPC plugin (VP, Rupostel or sme other?) for a short test
If the fields appear then contact the opc builder

[sergobrovar]

test by unpublishing the OPC plugin (VP, Rupostel or sme other?) for a short test
If the fields appear then contact the opc builder

Ок, thanks, I will try

[sergobrovar]

The problem was solved by installing a plugin of another developer

[GJC Web Design]

which OPC was the problem one? It is good practice to explain fully what fixes work so others can benefit from this forum

[sergobrovar]

which OPC was the problem one? It is good practice to explain fully what fixes work so others can benefit from this forum

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