Android 12 reading file on Internal storage leads to "open failed: EACCES (Permission denied)"

after hours of headache and researching (even the second site of google :) ), I decided to ask here for a solution to my problem.

What I'm trying to do is reading a Keepass File from my Internal Storage. The file is located under "/storage/emulated/0/Keepass". The file has to remain there, because it automatically syncs with a SynologyNAS. When im trying to open the file with the absolute path, I get the exception

    W/System.err: java.lang.IllegalArgumentException: The KeePass database file could not be found. You must provide a valid KeePass database file.
W/System.err:     at de.slackspace.openkeepass.KeePassDatabase.getInstance(KeePassDatabase.java:116)
W/System.err:     at de.philslr.passtick.MainActivity.readDb$lambda-5(MainActivity.kt:135)
W/System.err:     at de.philslr.passtick.MainActivity.$r8$lambda$1TiGYGtdMnuJx-_iduNC5-Ge9ag(Unknown Source:0)
W/System.err:     at de.philslr.passtick.MainActivity$$ExternalSyntheticLambda0.run(Unknown Source:2)
W/System.err:     at android.os.Handler.handleCallback(Handler.java:938)
W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:99)
W/System.err:     at android.os.Looper.loopOnce(Looper.java:201)
W/System.err:     at android.os.Looper.loop(Looper.java:288)
W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:7870)
W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
W/System.err:     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
W/System.err: Caused by: java.io.FileNotFoundException: /storage/emulated/0/Keepass/passwords_ps.kdbx: open failed: EACCES (Permission denied)
W/System.err:     at libcore.io.IoBridge.open(IoBridge.java:575)
W/System.err:     at java.io.FileInputStream.<init>(FileInputStream.java:160)
W/System.err:     at de.slackspace.openkeepass.KeePassDatabase.getInstance(KeePassDatabase.java:113)
W/System.err:   ... 11 more
W/System.err: Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied)
W/System.err:     at libcore.io.Linux.open(Native Method)
W/System.err:     at libcore.io.ForwardingOs.open(ForwardingOs.java:567)
W/System.err:     at libcore.io.BlockGuardOs.open(BlockGuardOs.java:273)
W/System.err:     at libcore.io.ForwardingOs.open(ForwardingOs.java:567)
W/System.err:     at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7756)
W/System.err:     at libcore.io.IoBridge.open(IoBridge.java:561)
W/System.err:   ... 13 more

And the code to read the file is:

try {
            val file = File(path)
            val database = KeePassDatabase.getInstance(file).openDatabase("password")
            val entries = database.entries
            for (entry in entries) {
                Log.d("[KDBX Read]", "Entry: ${entry.title}")
            }
        } catch (e: Exception) {
            Toast.makeText(applicationContext, "Couldn't open database, there was an error", Toast.LENGTH_SHORT).show()
            e.printStackTrace()
        }

I know there were some changes, to the file management with Android 12, but I guess there has to be a way to read the file anyway.

Thanks in advance