it looks like some of you power messenger files have become corrupted.
It seams that you may have used the DW File manager to move the from a folder named "PowerMessenger Files" to "PowerMessenger"
on the move in DW, it would have prompted to update paths. the paths should not have been updated.
when moving files, it is best to use the OS file manager rather than the file panel in Dreamweaver.
i sugest downloading a fresh copy of the power messenger files and uploading new versions.