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Drupal Error 502 bad gateway. When I Access TabPages inside of Content

I’m having this issue with Drupal after an update from Drupal 7 to Drupal 8.

The error is the following, when I go to the admin page, I go to content -> filter by -> tab pages -> and try to access a tab page a 502 bad gateway error presents.

My question is, someone has encounter with this particular error? You have any idea how can to solve it?

I never use Drupal, this project came to me through my company

Thank you!

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Answer

Is “Tab Pages” a Content Type in your filter?

Have you tried running the Update Database job and clearing Drupal’s cache?

If that doesn’t sort it out. I would then try installing the Twig Tweak Module. Then locate the server folder of the theme in use at: /web/themes/custom/…

Inside there, it seems you might have a custom template utilizing the Twig function:

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If you locate that, then try updating that function with the one provided by Twig Tweak.

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Then clear Drupal’s cache.

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