You need to change the permissions on folders and files. Currently, the hosting control panel has three functions in the file manager:
1 Changing permissions on folders and files
2 Changing permissions only on folders
3 Changing permissions only on files
We need to set permissions on folders to 755 and permissions on files to 644
Functions 2 and 3 do not work
Currently, if you change permissions only on folders, the files also receive the same permissions. If you change permissions only for files, the folders also receive the same permissions.
Easiest way is do it via terminal/command line.
Example:
You may want to direct that feedback upstream. HestiaCP does not develop the file manager.