The loaded level does not start

[Fare7731]

When I build a level in the editor, it starts and works. But as soon as I upload it to the server, it stops starting and copying. At the same time, the other functions work normally. And I also don’t know where to dig. What should I do?

Link to the video with a demonstration: https://drive.google.com/file/d/106tJtwLtazu6iGVFHYIbkZjQiXQVCO4y/view?usp=sharing

[MegaSa1nt]

your webserver fails to save level data, try to set permissions 777 to data/ folder

[Fare7731]

your webserver fails to save level data, try to set permissions 777 to data/ folder

I have chmod 777 set on the entire database folder and subfolders (including the data folder) but it doesn't help :(

[MegaSa1nt]

try chown -R www-data:www-data /path/to/gdps/core
after it try to upload new level! already broken ones will be fixed only after updating