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Error after placing the ad 502 Bad Gateway nginx/1.20.2
After the ad is published, it gives this error, the ad is not published, but an alert comes to the mail by clicking on the link to view the ad error 404.

Rolled back to 4.4. error 502 has not disappeared, it appears, but ads are published if the page is refreshed.

And that error is secret?

And that error is secret?

There is no secret.
After clicking publish ad 502 error.
You can refresh the page 20 times and it will be 502, but 20 ads will be placed.
How many times I updated the page with the error 502, there will be so many ads.
What is the reason? Where to look?

Why not put details of error here? I am not sure if 502 is related to osclass honestly.

Why not put details of error here? I am not sure if 502 is related to osclass honestly.

Fixed error 502
Some folders have attributes 777, changed them to 755
But oc-content/uploads/temp/ costs 755, but it needs 777
The error was because of this, the photos gave an error when uploading.

You can close the topic.

644 for files and 755 for folders.

THAT is the correct. Not 777, or anything else.

If that doesn't work, your HOSTING setup is wrong.

644 for files and 755 for folders.

THAT is the correct. Not 777, or anything else.

If that doesn't work, your HOSTING setup is wrong.

config.php should it be 644 too? by default there are 666.
/themes with 755 does not want to upload photos., ImageMagick is worth it.

644 for files, 755 for folders.
Imagemagick is better than default GD library