Logger Error EwonSyncManager has an unsupported name

EwonSyncManager in logs shows " The Tag Out4.1 has an unsupported name. Supported tag names must begin with an alphanumeric or underscore, followed by any number of alphanumerics, underscores, spaces, or the following: ' - : ( )"

My intent is find tag and modify or delete it. How can I find edit/delete this problem tag?

You could use find/replace to search for it.