I thought you might be interested in looking at Help needed to remove black error message box.
https://forums.bohemia.net/forums/topic/216730-help-needed-to-remove-black-error-message-box/?do=findComment&comment=3291639
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.