Erro create item menu

Is your feature request related to a problem? Please describe.

After upgrading to joomla 3.8.10, I can no longer create or edit a menu item, does anyone know how to solve it?

Describe the solution you'd like

Additional context

[wojsmol]

@rflaraujoweb Do you use any sitemap component?

no

I just updated joomla I'm just using helix 3 and akeebackup

erro: Cannot use object of type stdClass as array

[mbabker]

Caused by #20313 as noted in #20878

@rflaraujoweb Please have a Look at #20878, #20874

@rflaraujoweb so i would disable 3rd-Party Plugins one by one and ask help on the forums. This repository concerns in first Place Joomla-Core coding. For this Reason closing this Issue, thanks.

[joomla-cms-bot]

Set to "closed" on behalf of @franz-wohlkoenig by The JTracker Application at issues.joomla.org/joomla-cms/20879

[mbabker]

It is a bug, rather a regression introduced by #20313.

[dunbarr]

I am having the same problem, I have a basic site no 3rd-party plugins, only what is installed with Joomla. I upgraded to 3.8.9 and the issue began, so I tried upgrading to 3.8.10 to see it that would fix the problem, no dice. Any thoughts?

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[carlitorweb]

I cant reproduce this in the last staging....

[dunbarr]

I found that Helix3 was causing the issue. I disabled Helix3 - Ajax and System - Helix3 Framework and the issue went away.

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/20879.}