HELP AIO Upgrade to 3.0.8 broke backend... Only white admin pages no content

[KARINE]

renaming the mod_vmmenu file to mod_vmmenu_ helped!

Thanks for the advice.
I'd been looking for a solution since yesterday.

[JacoboPS]

To test updates in a test environment is for cowards!!
We (brave ignorants) prefer not to run previous tests... (sorry the joke, I promise to keep update my test environment for testing)

So, after following correctly all the steps (to solve the blank screen problem) my VM shows... 3.0.8 , but I still see on Updates the VM 3.0.8 component update as available.
And when trying to re-install that update, I get this error...

An error has occurred.
    1062 Duplicate entry 'tax_usage_type' for key 'name' SQL=ALTER TABLE `jos_virtuemart_userfields` ADD UNIQUE KEY `name` (`name`)

Is there any way to check whether the update was done correctly?

[jjk]

First thing I would try is to look ad the 'jos_virtuemart_userfields' table with phpmyadmin and change one of the duplicate names in the name column.

[JacoboPS]

Thank you, jjk, once the duplicated entry was deleted, I run again the update and the problem is solved.