improvement of error message

Signed-off-by: Rello <Rello@users.noreply.github.com>

src/gui/folderman.cpp

@@ -2044,9 +2044,9 @@ bool FolderMan::checkVfsAvailability(const QString &path, Vfs::Mode mode) const
 Result<void, QString> FolderMan::unsupportedConfiguration(const QString &path) const
 {
     if (numberOfSyncJournals(path) > 1) {
-        return tr("Multiple accounts are sharing the folder %1.\n"
-                  "This configuration is known to lead to data loss and is no longer supported.\n"
-                  "Please consider removing this folder from the account and adding it again.")
+        return tr("The folder %1 is linked to multiple accounts.\n"
+                  "This setup can cause data loss and is no longer supported. To resolve this issue, please remove this folder from one of the accounts and add it again.\n\n"
+                  "For advanced users: This issue might be related to an older database file. Check the folder for outdated .db files and remove them if necessary.")
             .arg(path);
     }
     return {};