If so, ElderSuite is notifying you that your "EOB Message List" is not accessible.
The file has likely been deleted and ElderSuite is notifying you that you must re-install ElderSuite to solve the issue. Re-Installing ElderSuite will re-install any missing files. Since that file is missing, there may be others that have been deleted as well.
What is an EOB Message List?
A missing EOB Code list is not a serious issue unless it continues disappearing. To fix the problem follow the recommendation provided in the message you received and re-install ElderSuite.
Please note, if for some reason this doesn't solve your problem or if you continue to have this issue, please Create a New Support Ticket Here as we will need to investigate what could be continuously removing Installed ElderSuite files.