it just doesnt load the database and i dont receive any errors., so it works like it totally ignores files i placed in userdata Roaming folder
If the database doesn’t try to open / load, “check in eM Client that you have the correct hidden database storage location folder” in case you are pointing to the wrong path / location on startup.
"Menu / Settings (Preferences) / General / Storage).
https://www.emclient.com/webdocumentation/en/10.0/emclient/default.htm#Settings/Storage.htm
Also make sure you are using the same eM Client V9 or V10 “that matches your database” via the release history page or it won’t normally open either.
If your storage path location folder is correct, and you are using the same eM Client version, and manually repairing the database makes no difference as per my post further up, then sounds like you may have either database files missing or possibly corrupted in some way and might need to either "restore an eM Client backup (if you have a recent one) via “Menu / File / Restore” as per the eM Client documentation.
Or if no backup, close eM Client and then “rename your current hidden database folder” to eg: eM Client-Old and then reopen eM Client which will then create a new database from scratch and then see if eM Client will open.
If creating a new database then allows you to get back into eM Client, then “you can try restoring your mail from your old database” via either the hidden database folder or from a backup as per my post in the following thread link below.
https://forum.emclient.com/t/emails-missing-from-backup-when-restored/101556/2
Or see eM Client support page blog on Partial Restore “part way down the following page”.
https://www.emclient.com/blog/how-to-restore-backup-in-em-client-614