i reset wpml and let all the tables reinstall. Now the missing table exist, but the message still appears. Could it be that it is that FALSE POSITIVE MESSAGE wich ist mentioned in the thread?
Because i found it as you see in the screenshot
Thank you for your feedback. Yes, it could be a false positive. If you re-installed WPML and confirm that the table does exist, you can close the message. And try to remove the key "wpml_string_table_ok_for_mo_import" from the options table (by default, wp_options, where "wp_" is your database prefix).